tested quality
many years' experience

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. Typical speeds that can then be ridden in the long term are around 35 to 40 km/h with tuning. Beyond that, much more physical power is needed, usually too much for mere mortals and non-professional cyclists. 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. However, you can change this value between 25 km/h and 50 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. 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.
badassBox 4 Bafang
E-Bike tuning with the badassBox for pedelecs with Bafang motor Our newest and best e-bike tuning for all Bafang mid-mounted drives. Even more robust thanks to a special potting compound from the automotive industry. A quality product designed, engineered and manufactured in Germany. tested withM500 and M800 Scope of delivery The delivery includes all parts, that you need to install your badassBox: one badassBox 4 Bafang One badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw four cable ties

€149.00*
badassBox 4 Bafang Refurbished
Our refurbished badassBoxes were in use for a short time, but they are as good as new! There may be traces of use, but these small optical flaws have no influence on the functionality of the badassBoxes. 
 A quality product developed, manufactured and refurbished with care and love in Germany. Scope of delivery The scope of delivery is similar to that of the badassBox 4 Bafang, but without a AAA battery and in a different packaging.


€119.00*
badassBox 4 Bosch
E-Bike tuning with the badassBox for pedelecs with Bosch motor Our newest and best e-bike tuning for all Bosch mid-mounted drives incl. 4th generation/2020. New slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. Scope of deliveryThe delivery includes the following parts: one badassBox 4 Bosch one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Bosch G4-Set
E-Bike Tuning for Pedelecs with Bosch Motor and integrated G4 Speed Sensor This set contains everything you need for the assembly of the badassBox 4 for your e-bike from Trek with Bosch mid-mounted motor and integrated G4 Speed Sensor. A quality product designed, engineered and manufactured by us in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Scope of delivery The delivery includes the following parts: one badassBox 4 Bosch one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one G4 Adapter a button head screw [M3 x 8 (ISO 7380-2)] a pad made of elastic foam four cable ties

€159.00*
badassBox 4 Bosch Refurbished
Our refurbished badassBoxes were in use for a short time, but they are as good as new! There may be traces of use, but these small optical flaws have no influence on the functionality of the badassBoxes. 
 A quality product developed, manufactured and refurbished with care and love in Germany. Scope of delivery The scope of delivery is similar to that of the badassBox 4 Bosch, but without a AAA battery and in a different packaging.


€119.00*
badassBox 4 Bosch X-Set
E-bike tuning for pedelecs with Bosch motor and integrated Bosch Sensor This set contains everything you need for assembly the badassBox 4 for your e-bike with Bosch mid-mounted motor and Bosch Sensor integrated in the dropout. A quality product designed, engineered and manufactured by us in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Scope of delivery The delivery includes the following parts: one badassBox 4 Bosch one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one Universal Adapter a pad made of elastic foam one M5 nut one washer one cylinder screw four cable ties

€154.00*
badassBox 4 Brose
E-Bike tuning with the badassBox for pedelecs with Brose motor Our newest and best e-bike tuning for all Brose mid-mounted drives. New slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Brose one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Brose CS-Set
E-Bike tuning for pedelecs with Brose motor and CS Sensor Order set for e-bikes with a Brose mid-mounted motor and new pin-shaped sensor in the dropout. The assembly requires a small conversion. Please read the instructions on the left before ordering! A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Brose one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one CS Adapter four cable ties

€159.00*
badassBox 4 Fazua
E-Bike tuning with the badassBox for pedelecs with Fazua motor Our newest and best e-bike tuning for the Fazua mid-mounted drive. New slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured by us in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Fazua one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one 5 mm distance bush

€149.00*
badassBox 4 Fazua X-Set
E-bike tuning for pedelecs with Fazua motor and integrated Fazua Sensor This set contains everything you need for assembly the badassBox 4 for your e-bike with Fazua mid-mounted motor and sensor integrated in the fork-end. A quality product designed, engineered and manufactured by us in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Scope of delivery The delivery includes the following parts: one badassBox 4 Fazua one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one Universal Adapter a pad made of elastic foam one M5 nut one washer one cylinder screw four cable ties

€154.00*
badassBox 4 Giant
E-Bike tuning with the badassBox for pedelecs by Giant Our newest and best e-bike tuning for all pedelecs by Giant with Yamaha mid-mounted drives. New slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Giant one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Giant 2020
E-bike tuning or pedelecs from Giant with Giant sensor integrated in the dropout Our newest and best e-bike tuning for pedelecs by Giant with Yamaha mid-mounted drives an sensor integradted in the dropout. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Please check before ordering whether the cable of your sensor can be pulled out far enough from the dropout, so that the sensor can be attached to the chainstay in front of the brake disc. Only under this condition, the sensor can be used together with the badassBox. Scope of delivery The delivery includes the following parts: one badassBox 4 Giant 2020 one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw four cable ties

€149.00*
badassBox 4 housing cover
The housinglid fits all badassBoxes of version 4. The snapclosures ensure a secure hold. A quality product designed, engineered and manufactured by us in Germany. The Original – only real with the seal. Scope of delivery One badassBox 4 housing cover

€9.90*
badassBox 4 Impulse
E-bike tuning with the badassBox for pedelecs with Impulse motor Our latest and best e-bike tuning for all Impulse middle­motors. New slim housing with patented snap lock, for even faster mounting and removal. Even more robust due to special­cast­mass from the auto­mobil­industry. New electronics­design for even more range­with a single AAA battery. A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Impulse one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Panasonic
E-Bike tuning with the badassBox for pedelecs with Panasonic motor Our newest and best e-bike tuning for all Panasonic mid-mounted drives. Newly developed casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. For an e-bike with a Panasonic motor with an electronic gear shift, you need the badassBox 4 Panasonic Freeze! Scope of delivery badassBox 4 Panasonic with AAA battery and spoke magnet with thumb screw

€149.00*
badassBox 4 Panasonic 2020
E-Bike tuning for pedelecs with Panasonic motor and new Panasonic Sensor Our newest and best e-bike tuning for all Panasonic mid-mounted drives. Slim casing with patented snap lock, for even faster mounting and removing. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Panasonic 2020 one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Panasonic 2020 Refurbished
Our refurbished badassBoxes were in use for a short time, but they are as good as new! There may be traces of use, but these small optical flaws have no influence on the functionality of the badassBoxes. 
 A quality product developed, manufactured and refurbished with care and love in Germany. Scope of delivery The scope of delivery is similar to that of the badassBox 4 Panasonic 2020, but without a AAA battery and in a different packaging.


€119.00*
badassBox 4 Panasonic CS-Set
E-Bike tuning for pedelecs with Panasonic motor and CS Sensor Order set for e-bikes with a Panasonic center motor and new pin-shaped sensor in the dropout. The assembly requires a small conversion. Please read the installation instructions on the left before you order! A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Universal one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one CS Adapter four cable ties

€159.00*
badassBox 4 Pendix
E-Bike tuning with the badassBox for pedelecs with Pendix motor Our newest and best e-bike tuning for all Pendix mid-mounted drives. New streamlined casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed and manufactured by us in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Pendix one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Pendix Refurbished
Our refurbished badassBoxes were in use for a short time, but they are as good as new! There may be traces of use, but these small optical flaws have no influence on the functionality of the badassBoxes. 
 A quality product developed, manufactured and refurbished with care and love in Germany. Scope of delivery The scope of delivery is similar to that of the badassBox 4 Pendix, but without a AAA battery and in a different packaging.


€119.00*
badassBox 4 Polini
E-Bike tuning with the badassBox for pedelecs with Polini E-P3 motor Our newest and best e-bike tuning for Polini E-P3 mid-mounted drives. Slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. A quality product designed, engineered and manufactured in Germany. Scope of delivery The delivery includes the following parts: one badassBox 4 Polini one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Shimano 2019
E-Bike tuning with the badassBox for pedelecs with Shimano motor Our newest and best e-bike tuning for Shimano mid-mounted drives – also with Di2! Slim casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics compatible with recent firmware upt o 4.8.0. And now even better: Version 2019 supports mechanical and electronic gearshifts (Di2)! Excepts Nexus Di2 hub gears. A quality product designed, engineered and manufactured in Germany. Works with Di2 hub gears, except Nexus Scope of deliveryThe delivery includes the following parts: one badassBox 4 Shimano 2019 one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw

€149.00*
badassBox 4 Shimano 2020
E-bike tuning with the badassBox for pedelecs with Shimano motor and integrated Shimano sensor SM-DUE11 Our latest and best e-bike tuning for pedelecs with Shimano motor. Even more robust due to special­cast­mass from the auto­mobil­industry. New electronics­design for even more reach­width with a single AAA battery. A quality­product developed by us and manufactured in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Please check before ordering whether the cable of your sensor can be pulled out far enough from the fork-end, so that the sensor can be attached to the chainstay in front of the brake disc. Only under this condition, the sensor can be used together with the badassBox. Scope of delivery The delivery includes the following parts: one badassBox 4 Shimano 2020 one badassBox 4 housing cover one AAA battery one cylinder head screw [M3 x 8 (DIN 912)] one spoke magnet with thumb screw four cable ties

€149.00*
badassBox 4 Shimano X-Set
E-bike tuning for pedelecs with Shimano motor and integrated Shimano Sensor This set contains everything you need for assembly the badassBox 4 for your e-bike with Shimano mid-mounted motor and Shimano Sensor SM-DUE10 integrated in the dropout. A quality product designed, engineered and manufactured by us in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering! Scope of delivery The delivery includes the following parts: one badassBox 4 Shimano 2019 one badassBox 4 housing cover one AAA battery one spoke magnet with thumb screw one Universal Adapter a pad made of elastic foam one M5 nut one washer one cylinder screw four cable ties

€154.00*

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.