Badass Box

Contactless e-bike tuning directly from the manufacturer

Find your Badass Box

If 25km/h is not fast enough for you

The popular & proven tuning tool to remove the 25 km/h restriction for e-bike motors from different manufacturers such as Bosch, Shimano, Yamaha, Brose, Fazua or Bafang.

  • No more 25 km/h limit

    The power of the motor remains at 250 watts, but the motor supports you with badassBox up to a speed of 40 km/h 

  • Quick & easy installation

    The badassBox is slid over the speed sensor and the spoke magnet is moved, so the bike is tuned in no time at all. Or just as quickly back to its original state (as use in the area of application of the local traffic act is of course prohibited).

  • Non-invasive tuning

    The tuning is not connected to the engine or installed in the wiring, i.e. no major conversion work and no technical intervention in the engine system. This also eliminates the need for any conversion work if, for example, the e-bike has to go to the workshop. Pull off the box, move the magnet, done.

  • Made in Germany, guaranteed.

    The badassBox is developed and produced by us in Germany. We can therefore guarantee the highest quality. If you still have problems, our customer service will be happy to help you. What's more, thanks to our one-month money-back guarantee, you can try out the badassBox without any risk.

Get to know our Team

Well, are you curious who is behind the products, packages packed with love and and the absolute best customer service?

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Our bestsellers

Now really step on the gas

badassBox 4 Brose
Attention, the pin-shaped sensor (second picture) is not compatible with this variant –for the CS-Sensor you need the badassBox 4 Brose CS-Set Badass eBikes proudly presents: the new improved badassBox 4 Brose The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technologyAuto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 Brose is fitted over the Brose speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor.­ For extra secure fitting, the badassBox can also be fastened with a zip tie. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions   61 x 43 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Panasonic CS-Set
Attention, only the pin-shaped CS sensor (1st picture) is compatible with this variant –for the new sensor (2nd picture) you need the badassBox 4 Panasonic 2020, for the normal Panasonic sensor (3rd picture) you need the badassBox 4 Panasonic The badassBox 4 Panasonic CS-Set includes all the parts you need to install the badassBox 4 on your e-bike with Panasonic mid-mounted drives and pin-shaped sensor: badassBox 4 CS Adapter Spoke Magnet with Thumb Screw With the badassBox 4 Brose CS set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money. Installation The pin-shaped CS sensor is located in the area of the dropout. To get to the sensor you have to remove the rear wheel. Unscrew the screws of the bracket that secures the sensor to the dropout. Separate the sensor from the bracket. Insert the pin-shaped sensor into the adapter so that the flat side of the sensor is aligned with the corresponding recess in the adapter. The sensor must be inserted completely into the adapter, so that only the cable protrudes and the snap closes flush with the surface of the adapter. (In the photo, the sensor is not yet completely inserted). Attach the adapter to the frame of your bike with the supplied cable ties. Reinstall the rear wheel. Slide the badassBox onto the adapter until it clicks into place. Mount the spoke magnet and align it with the edge of the badassBox housing. That's it. Have fun with your faster e-bike!

€164.00*
badassBox 4 Polini
Badass eBikes proudly presents: the newly upgraded badassBox 4 Polini The badassBox 4 is the result of more than a year's development. We have completely redesigned the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. You can carry out the replacement on site without tools and in no time. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special potting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology AAA battery for range in excess of 7,000 km Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation You will find the speed sensor on the chainstay of your bike (as pictured). The badassBox 4 Polini is fitted over the Polini speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a cable binder. When the badassBox is first fitted, the spoke magnet that comes with it must be mounted in place of the original magnet. Without the badassBox, our spoke magnet functions identically to the original magnet, but when the badassBox is fitted, the spoke magnet is necessary for our patented field enhancement technology to work properly. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. If the spoke magnet touches the badassBox, it must be repositioned as near as possible next to the badassBox and turned through ninety degrees. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions    61 x 40 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Panasonic 2020
Attention, only the new sensor is compatible with this variant –for the pin-shaped sensor (left) you need the badassBox 4 Panasonic CS-Set, for the normal Panasonic sensor (right) you need the badassBox 4 Panasonic Badass eBikes proudly presents: the brand new badassBox 4 Panasonic 2020 The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, with patented snap-lock fastening and a unique shape. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. We use a single 1.5 V AAA battery. Replacement for the supplied battery can be purchased cheaply and literally on every street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery.. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Unique, design registered housing Patented snap-lock fastening Patented field amplification technology AAA battery for range in excess of 7,000 km Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 Panasonic 2020 is fitted over the peed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor.­ For extra secure fitting, the badassBox can also be fastened with a zip tie. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions    61 x 43 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Yamaha
The badassBox 4 Yamaha is compatible with the Yamaha sensor shown here, which is easily accessible on your chainstay. If there is no sensor on the chainstay, then the sensor is integrated in the dropout and you need depending on the shape of the sensor either the badassBox 4 Yamaha X-Set or the badassBox 4 Giant 2020 Badass eBikes proudly presents: the new improved badassBox 4 Yamaha The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 Yamaha is fitted over the Yamaha speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. When the badassBox is first fitted, the spoke magnet that comes with it must be mounted in place of the original magnet. Without the badassBox, our spoke magnet functions identically to the original magnet, but when the badassBox is fitted, the spoke magnet is necessary for our patented field enhancement technology to work properly. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } Technical data Dimensions    61 x 39 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Bosch
Attention, the badassBox 4 Bosch is only compatible with the sensor shown in this picture. Badass eBikes proudly presents: the new improved badassBox 4 Bosch The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 Bosch is fitted over the Bosch speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions   61 x 43 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Fazua
Attention, the badassBox 4 Fazua is only compatible with the sensor shown in the first picture. The sensor is easily accessible on your chainstay (see red marked area in the 2nd picture). If the sensor is not on the chainstay, then the sensor will probably be integrated in the dropout, please see the badassBox 4 Fazua X-Set. Badass eBikes proudly presents: the new improved badassBox 4 Fazua The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 Fazua is fitted over the Fazua speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. When the badassBox is first fitted, the spoke magnet that comes with it must be mounted in place of the original magnet. Without the badassBox, our spoke magnet functions identically to the original magnet, but when the badassBox is fitted, the spoke magnet is necessary for our patented field enhancement technology to work properly. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions   61 x 43 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Specialized-Set Turbo Levo 2019
Attention, only the pin-shaped sensor (first picture) is compatible with this variant - for the normal sensor you need the badassBox 4 Specialized set The badassBox 4 Specialized set Turbo Levo 2019 includes all the parts you need to mount the badassBox 4 Brose on your Specialized e-bike with pin-shaped sensor: badassBox 4 Brose Turbo Levo 2019 Adapter Spoke Magnet with Thumb Screw With the badassBox 4 Specialized set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money. Installation The integrated sensor is located in the area of the dropout. To get to the sensor you have to remove the rear wheel. Unscrew the screws of the bracket that secures the sensor to the dropout. Slide the pin-shaped sensor into the adapter so that only the cable extends out and the snap closes flush with the surface of the adapter. (In the photo on the right, the sensor is not yet fully inserted).

€164.00*
badassBox 4 TQ
Badass eBikes proudly presents: the new improved badassBox 4 TQ The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation The badassBox 4 TQ is fitted over the TQ speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. If the spoke magnet touches the badassBox, it must be repositioned as near as possible next to the badassBox and turned through ninety degrees. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions    61 x 43 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Impulse
Attention, the badassBox 4 Impulse is only compatible with the sensor shown in this picture. Badass eBikes proudly presents: the new improved badassBox 4 Impulse The badassBox 4 is the result of over a year of development work. We have completely redesigned the housing, made it thinner, and replaced the O-ring of the previous versions with our patented snap lock. Thinner means that there are no longer any installation situations that are too tight. The sensor application is only a minimal 3 mm - less is hardly possible. With the new snap lock, you can mount and dismount the badassBox with just one hand in no time at all. At the customer's request, we have also provided an optional fastening security device using cable ties on the snap closure. We have replaced the CR2 battery with an AAA battery. Replacement for the supplied battery you get cheap and proverbial on every corner. You can do the exchange yourself on site without tools in no time. We recommend replacing the battery at least once a year at the start of the season. Through our specially developed and patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you come with a battery very far. To protect against moisture and the mechanical stresses on the wheel, the electronics are glued into the housing with a special potting compound and completely sealed. We develop and manufacture the badassBox completely ourselves. Before and after potting, we test every single badassBox for correct function. Customer satisfaction and quality are our top priorities. We are happy to answer any question - usually on the same working day. Because of the high quality and our focus on customer satisfaction, we also offer a 1 month money back guarantee. In a nutshell The badassBox is placed on the speed sensor of the e-bike and lifts the 25 km/h limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Slim, design-protected housing Patented snap lock Security option on the housing Patented field reinforcement technology Automotive industry potting compound Double quality control Made in Germany 1 month money back guarantee Installation You will find the speed sensor on the chainstay of your bike (as pictured). The badassBox 4 Impulse is mounted using the Impulse speed sensor next to the rear wheel. When the snap lock engages, the badassBox is securely attached to the sensor. Optionally, the badassBox can be additionally secured by means of a cable tie. For initial installation, it is recommended to replace the screw of the spoke magnet with the supplied lobe screw for tool-free relocation. After placing the badassBox on the sensor, the spoke magnet must be moved to the edge of the housing in the direction of the snap lock. Done! After removing the badassBox, the spoke magnet must be reset to the original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The badassBox transmits a modified signal contact-free, without electrical connection to the engine, without intervention in the engine electronics or software, in order to exceed the speed limit. It is not necessary to open the engine elaborately. There is no risk of damage. The badassBox is on and off in seconds, returning the e-bike to its previous, legal state. With all the advantages, a wrong speed, as well as values derived from it, are displayed on principle. We recommend the use of GPS-related additional devices (cell phone, bike computer, etc.) for a more accurate driving data collection anyway. Technical data Dimensions  61 x 43 x 15 mm WeightbadassBox 27 g with battery 37 g battery1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Specialized-Set
Attention, only the normal sensor (first picture) is compatible with this variant - for the pin-shaped sensor you need the badassBox 4 Specialized-Set Turbo Levo 2019 The badassBox 4 Specialized set includes all the parts you need to mount the badassBox 4 Brose on your Specialized e-bike: badassBox 4 Brose Universal Mount Spoke Magnet with Thumb Screw With the badassBox 4 Specialized set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money. Installation The integrated sensor is located in the area of the dropout. To get to the sensor you have to dismount the rear wheel. Find the position of the integrated sensor* in the dropout of your e-bike. *The sensor shape shown is an example. Undo the screws of the bracket that holds the sensor* is fastened to the dropout. *The sensor shape shown is an example. Fasten the Universal Adapter with cylinder head screw, washer and nut (included in delivery) to the sensor*. *The sensor shape shown is an example. Now you can attach the Universal Adapter with mounted sensor* on the chainstay with supplied cable ties. *The sensor shape shown is an example. Slide the badassBox onto the adapter until it clicks into place. Reinstall the rear wheel. Mount the spoke magnet and align it with the edge of the badassBox housing. That's it. Have fun with your faster e-bike!

€159.00*
badassBox 4 Pendix
Attention, the new Pendix sensor (second picture) is not compatible! Badass eBikes proudly presents: the new improved badassBox 4 Pendix The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road.We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation You will find the speed sensor on the chainstay of your bike (as pictured). The badassBox 4 Pendix is fitted over the Pendix speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions  61 x 43 x 15 mm WeightbadassBox 27 g including battery 37 g Battery1.5 V AAA battery (IEC R03)

€154.00*
badassBox 4 Giant
Attention, only the sensor on the left is compatible.Please contact us if you have the other sensor. Badass eBikes proudly presents: the new improved badassBox 4 Giant The badassBox 4 is the result of more than a year's development. We have completely re-designed the casing, made it more streamline and replaced the o-ring of the previous version with our patented snap-lock fastening. Making it more streamline makes it even easier to fit. The new snap-lock fastening means you can attach and remove your badassBox with just one hand in seconds. At customer's request, we have additionally added an optional securing feature on the snap lock using a cable tie. The CR2 battery has been replaced with a AAA battery, so you can pick up replacement batteries much cheaper on just about any street corner. Tool-free battery change can be carried out quickly and easily while you're on the road. We recommend replacing the battery at least once a year at the start of the season. Due to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology) you get very far with one battery. To protect against moisture and mechanical stress, the electronics are glued into the casing and completely sealed with a special casting compound. The badassBox is developed and manufactured exclusively by us in-house. Before and after casting we check each badassBox individually. Customer satisfaction and quality are our top priorities. If you have any questions, don't hesitate to ask – we'll get back to you with an answer straightaway, mostly on the same working day. Due to the high quality and our focus on customer satisfaction, we additionally offer a 1 month money-back guarantee. In a nutshell The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit. Remove it and your e-bike is restored to its original state. Contactless e-bike tuning Streamlined, registered design for casing Patented snap-lock fastening Securing feature on the housing Patented field enhancement technology Auto industry potting compound Doubled quality control Made in Germany One month money-back guarantee Installation You will find the speed sensor on the chainstay of your bike (as pictured). The badassBox 4 Giant is fitted over the speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is fitted securely to the sensor. For extra secure fitting, the badassBox can also be fastened with a zip tie. When the badassBox is first fitted, the spoke magnet that comes with it must be mounted in place of the original magnet. Without the badassBox, our spoke magnet functions identically to the original magnet, but when the badassBox is fitted, the spoke magnet is necessary for our patented field enhancement technology to work properly. Once the badassBox has been fitted onto the sensor, the spoke magnet must be offset to the casing edge in the direction of the snap-lock clasp. It's now ready for use. Following removal of the badassBox, the spoke magnet must be returned to its original position. .responsive-video { position: relative; padding-bottom: 56.25%; padding-top: 30px; height: 0; overflow: hidden; } .responsive-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } How it works The contactless and wireless badassBox transmits a modified signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it. The badassBox can be fitted in seconds – and just as quickly removed, restoring your e-bike to its former road-legal condition. For all these advantages, a wrong speed, and values derived from it, are displayed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.). Technical data Dimensions   61 x 39 x 15 mm Weight badassBox 27 g including battery 37 g Battery 1.5 V AAA battery (IEC R03)

€154.00*

At a glance

Advantages of ordering directly from us

One month money-back guarantee

If you are not completely satisfied with our badassBox, you can simply send it back to us within one month and get your money back.

Low-cost shipping all over the world

You can order our products free of shipping costs within Germany from 50,-€, within Europe from 160,-€ and otherwise we ship worldwide for a slim 9,90€.

Easy, secure and fast payment

We offer you Paypal, credit card, Klarna, Giropay, Bancontact and ideal to pay quickly. Of course, everything is absolutely secure.

You are not alone with your Badass Box!
We are many

Thousands of satisfied customers

Do you have a question?

We are happy to help you!

E-bike tuning - short and sweet

Tuning your e-bike does not mean making the motor stronger. The power remains at 250 watts, but you get motor support beyond the 25 km/h limit. If the 250 W support normally stops abruptly at 25 km/h, the pedalling power required to maintain the speed is not pleasant for many and is perceived as "riding into a wall". This can be prevented by tuning. The motor support is there for longer and only when the combined motor and human power can no longer stand up to physics (air and rolling resistance, slope downforce, etc.) is further propulsion slowed down slowly and homogeneously.  For this reason, and because of the increasing efforts of engine manufacturers to prevent tuning, we have set a default speed of 40 km/h. 

 Our badassBox is a non-invasive tuning, i.e. it does not require any intervention in the engine system, no engine has to be removed or any cable solutions installed in the frame. This also means that the box cannot break anything in the engine. Instead, we just slide our box over the speed sensor and that's it. With some sensor types, the sensor also has to be mounted on the box, with integrated sensors, these have to be relocated once. But all in all, this is no big deal and can be done in a few simple steps. This makes it possible to switch quickly between legal and tuned operation. This is a great advantage, especially when the next visit to the bike dealer is imminent. The disadvantage of this method, however, is that your display "only" shows you the manipulated speed. And this is no longer done by halving the real speed as it used to be, but in a non-linear way and therefore more difficult to estimate. If you want to keep an eye on your real speed or if you want to record your tour in real distances, we recommend using an ordinary speedometer or your mobile phone. If you have any questions, whether general or about a specific problem, feel free to contact us.

firmware-upgrade warning!

Unfortunately, firmware updates/upgrades are at the same time also a gateway for their unwanted features, which take away the choice of tuning or limit it.

We therefore recommend our customers not to carry out any upgrades/updates of the motor firmware or have them carried out at present in order to retain the option of selecting the tuning/original state. This applies in particular in connection with workshop work on your e-bike.

please note

  • The badassBox is not to be used in normal road traffic or in areas regulated by the Road Traffic Act!
  • Use is only permitted on private property or for example for competition or test purposes.
  • Mounting the badassBox may lead to a loss of the bicycle warranty.
  • Use of the badassBox is entirely at your own risk and danger.
  • The manufacturer accepts no liability for damage to property and/or persons arising from inappropriate use of the products.