badassBox 4 Yamaha Speed delimiter

E-bike tuning with badassBox for pedelecs with Yamaha motor

Our best and newest e-bike tuning for all Yamaha mid-drives. New aerodynamic housing with patented snap lock for even faster mounting and releasing. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery.

The badassBox 4 Yamaha is compatible with the Yamaha sensor shown here, which can be easily accessed on your chainstay.
If there is no sensor on the chainstay, then the sensor is integrated into the dropout and, depending on the shape of the sensor, you will need the badassBox 4 Yamaha X-Set or the badassBox 4 Giant 2020.

Badass eBikes proudly presents: the new and improved badassBox 4 Yamaha

The badassBox 4 is the result of more than a year of development. We have completely redesigned the housing, made it more streamlined, and replaced the O-ring of the previous version with our patented snap lock. Making it more streamlined makes it even easier to attach. The new snap lock means you can attach and remove your badassBox with just one hand in seconds. At the customer's request, we have additionally added an optional security feature on the snap lock using a cable tie.

The CR2 battery has been replaced by an AAA battery, so you can get replacement batteries much cheaper on practically any corner. The tool-free battery change can be done quickly and easily while you are on the go. We recommend replacing the battery at least once a year at the start of the season. Thanks to our specially patented field enhancement technology FEET (Field Enhancement & Elimination Technology), you will be able to go very far on a single battery. To protect them against moisture and mechanical stress, the electronic components are glued to the housing and completely sealed with a special potting compound.

BadassBox is developed and manufactured exclusively by us in-house. Before and after casting, we check every single badassBox. Customer satisfaction and quality are our top priorities. If you have any questions, please do not hesitate to ask us; we will get back to you with an answer immediately, usually on the same business day. 

In a nutshell

The badassBox is attached to the e-bike's speed sensor and overrides the 25 km/h speed limit. Remove it and your e-bike will return to its original state.

Contactless e-bike tuning
Aerodynamic and registered housing design.
Patented snap lock
Security element on the housing.
Patented field enhancement technology
Potting compound from the automotive industry
Double quality control
Made in Germany