Unlock the speed limit of your electric bike with a Specialized 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 as fast as you can! 

eBike tuning  for 2019+2020 Turbo Levo, Turbo Levo SL, Turbo Creo SL and 2020 Turbo Kenevo by Specialized with new sensor in the fork-end.

For all other e-bikes by Specialized you need the regular badassBox 4 Specialized-Set
The assembly requires a small conversion. Please read the instructions before ordering!

SCOPE OF DELIVERY:  badassBox 4 Brose with AAA battery, spoke magnet with thumb screw, and Turbo Levo adapter.

Attention, only the pin-shaped sensor (first picture) is compatible with this variant – for the normal sensor you need the badassBox 4 Specialized-Set

The badassBox 4 Specialized-Set Turbo Levo 2019 contains the necessary parts for mounting the badassBox 4 Brose at a reduced set price: badassBox 4 Brose with AAA battery, spoke magnet with Tool-free 4mm screw, and Specialized adapter.  

The operation of modified electric bike on public roads may be against the law in some countries. The seller takes no responsibility for damages resulting from the use of tuning products. Electric bikes equipped with tuning products can be used exclusively on private property and entirely at one’s own risk. The use of tunings may void the warranty of your e-bike. We strongly recommend using safety features and protective gear to prevent injuries at higher speeds.


HOW TO INSTALL the badassBox 4:
For best results, during the installation of the badassBox keep the bike engine TURNED OFF at all times. 

1)  Remove the battery from the badassBox and make sure that it is fully charged. Wait before re-inserting the battery.
2)  Slide the badassBox over the speed sensor and install the magnet on the wheel spoke. Align the magnet as shown below. 

3)  Make sure that the battery was removed from the badassBox for at least 30 seconds before re-inserting into the badassBox.
4) Turn on the system and make a few wheel turns. If the display shows a speed, the device is working. 

On certain e-bikes models it may be advised to relocate the magnet on the rear spoke or to twist it at 90 degree (magnet facing up or down) to allow more tolerance between box and magnet. 

The returned BadassBoxes are tested with a specific badass diagnostic tool for any errors/malfunctions. In the majority of the cases boxes are in good working conditions so please make sure that you have followed the instruction correctly before requesting a new unit.