eBike Tuning SpeedBox 2.0 for Yamaha PW-X Available NOW! - Remove Speed Limit - YouTube
Tuning Chip E-Bike SPEEDBOX 2.0 for display: Yamaha Assembly: invisible at the drive motor displayed: actual values activation: light-button / ↑ ↓ ↑ ↓ controls: display electric assistance - 60 km/h Max.