Speedbox 3.0 for BOSCH (2017-21) ebike tuning speed unlock
E-Bike Tuning SpeedBox 3.0 B.Tuning (Bluetooth) BOSCH la TIME BIKE
Installation: SpeedBox 3.0 B. Tuning For Bosch (incl. Gen 4) - YouTube
SPEEDBOX 3.0 for Bosch / eBike Tuning, also for Bosch engines of the 4th Generation / Smart tuning chip of the 3rd Generation incl. 1 crank puller : Amazon.co.uk: Sports & Outdoors