badassBox 4 for BOSCH Slim Sensor


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Unlock the speed limit of your electric bike with a Bosch badassBox tuning box. The badassBox is the easier ebike tuning to install and remove. No wiring or engine cover removal required - just slide the badassBox over the speed sensor and you are ready to go! Unleash the full speed of your ebike engine and ride it like a derestricted e-bike should be!
Our newest and best e-bike tuning for all Bosch mid-mounted drives incl. 4th generation/2022. 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 in Germany.

Attention, you only need this set if the Bosch Slim sensor is attached to the chain stay using the original adapter (first picture) or is integrated in the dropout of your bike (second picture).
If the Bosch sensor (third picture) is mounted on your chain stay and is easily accessible, you only need one badassBox 4 Bosch.

The badassBox 4 Bosch Slim set includes all the parts you need to mount the badassBox 4 on your e-bike with a Bosch mid-mounted motor and Bosch Slim sensor:
badasBox 4 bosch
Bosch Slim-Adapter
With the badassBox 4 Bosch Slim Set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money.

The Bosch Slim Sensor is either mounted on the chain stay or integrated into the dropout.

Here the slim speed sensor is classically mounted on the chain stay with an adapter.
There, the sensor must be freed from the adapter, the original adapter is unscrewed and replaced by our adapter.

Here the slim speed sensor is integrated near the rear axle. First, the rear wheel must be removed.
Then the sensor is removed from the bracket and mounted with our adapter at a suitable place on the chain stay using cable ties.