inbouw en kalibratie van een Bad Ass box Shimano 2020 - YouTube
TUNING BadassBox 4- SHIMANO
Tuningbox E-Bike BADASS Box 4 Assembly: visible via speed sensor displayed: falsified and lower than real activation: clip on and move spokes magnet electric assistance 0-40 km/h Max. Speed: unlimited 61x31x28 mm