The box from BadAss for e-bikes and pedelecs with BOSCH mid-motor and integrated G4 Speed Sensor.

Attention: This BadAss Box 4 BOSCH is only compatible with the G4 Speed Sensor (see picture above). If the sensor in the dropout has the shape of the other sensor in the picture, the BadAss Box 4 X-Set is required. If the sensor is mounted easily accessible on the chain stay, only a BadAss Box 4 BOSCH is needed.

• Contactless E-Bike Tuning
• Specially developed for the G4 Speed Sensor
• Made in Germany

This set includes everything needed for use with a BOSCH mid-motor. The scope of delivery includes:

• the BadAss Box 4 BOSCH
• one BadAss Box 4 casing cover
• one AAA battery one spoke magnet with lobe screw
• one G4 adapter
• one lenticular flange screw [M3 x 8 (ISO 7380-2)]
• one elastic foam pad
• four cable ties

ASSEMBLY

A small modification is necessary. Please be sure to download the PDF with the installation instructions.

SOFTWARE

Firmware updates/upgrades are, despite the manufacturers advertising new features, better battery management etc., at the same time gateways for their unwanted features, which take away or limit the choice for tuning. At present, no upgrades/updates of the engine firmware should be carried out in order to preserve the choice for tuning/original condition. This also applies in particular in connection with workshop work on the e-bike.

Conclusion: If you have installed the G4 Speed Sensor, you now have a great option for tuning.