Tuning Chip E-Bike SPEEDBOX 1.3 B.TUNING 4 pin connector for 4 pin connector Assembly: invisible at the drive motor displayed: Actual values up to 23 km/h, then in app activation: light-button controls:
SpeedBox tuning chip for e-bikes with Bosch mid motor - Package: BOX, Qty: 1 pcs
Tuning de-restricting a Bosch Gen 4 eBike VOLspeed chip - YouTube
EBIKE TUNING FOR BOSCH SPEED BOX 3.0 vs. Volspeed V4 - YouTube
Volspeed voor Bosch Active / Performance V4 - Fietsunie.nl