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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 casting 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

badassBox 4 Panasonic with AAA battery and Toolfree 4mm screw

Available immediately. Shipping within 1 - 2 business days.
incl. statutory VAT 19% plus shipping costs
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Badass eBikes proudly presents: the brand new badassBox 4 Panasonic

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 1.5V 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 – but should only be necessary once a year, or every 7000km. This was made possible by our in-house developed and patented field amplification technology FEET (Field Enhancement & Elimination Technology). 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 3-month money-back guarantee.

In a nutshell

The badassBox is attached to the speed sensor of the e-bike and overrides the 25km/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 7,000km
  • + Auto industry casting compound
  • + Doubled quality control
  • + Made in Germany
  • + 3-month money-back guarantee


The badassBox 4 Panasonic is fitted over the Panasonic speed sensor next to the rear wheel. When the snap-lock clicks into position, the badassBox is securely fitted to the sensor.

On first fitting, we recommend replacing the spoke magnet screw with the tool-free screw that comes with the product. 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. Done!

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.).

Technical data

59 x 31 x 28 mm
badassBox 22g
with battery 32g
1.5V AAA battery (IEC R03)

Accessories & replacement parts
Tool free 4mm Tool free 4mm € 1,20
incl. statutory VAT 19% plus
shipping costs


  • 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 product.
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