SpeedBox 1.1 for Bosch Smart System | Speed Unlock Chip

SpeedBox's best-selling tuning chip for Bosch Smart System e-bikes. Removes the 25 km/h assistance limit so your motor keeps helping as fast as you can pedal — top speed becomes limited only by your legs.

Compatible with: Bosch Smart System Gen 4 and Gen 5 motors with round connectors — Performance Line SX, CX and CX Race. Works with Kiox 300/500, Purion 200/400, Intuvia 100, LED Remote, Mini Remote and System Controller. Not compatible with bikes using a rim magnet (those need the SpeedBox 1.3–1.6 B.Tuning).

Uses genuine keyed connectors — plugs in between motor and loom in around 20 minutes with basic tools, and is just as easy to remove. Speed limit adjustable via the display. Lifetime functionality warranty from SpeedBox. Prefer not to open your motor cover? We install SpeedBox in the Grace and Pace workshop in Alphington while you wait.

Important: for private property use only. A tuned e-bike no longer complies with Australian road rules for pedal-assist bicycles and must not be ridden on public roads, paths or trails. Tuning may affect your bike manufacturer's warranty. By purchasing, you accept it's the rider's responsibility to comply with all applicable laws.