badassBox 4 for BOSCH X-SET 2020



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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 need this set only if the Bosch Sensor (first picture) is integrated in the dropout of your bike.
If the integrated sensor looks like the one in the second picture, then it is the G4 Speed Sensor and you need the badassBox 4 Bosch G4-Set.
If the Bosch Sensor (first picture) is mounted easily accessible on your chainstay, you only need a badassBox 4 Bosch.

The badassBox 4 Bosch X-Set includes all the parts you need to mount the badassBox 4 on your e-bike with a Bosch mid-mounted motor and Bosch Sensor integrated in the dropout:

badasBox 4 bosch 

Universal Adapter

Spoke magnet with thumb screw

With the badassBox 4 Bosch X-Set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money.

The integrated Bosch 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 Bosch Sensor*.
*The sensor shape shown is an example.

Now you can attach the Universal Adapter with mounted Bosch 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!