Speedbox 1.3 B.Tuning Chip for Shimano EP8/EP800 eBikes (+ETP Bluetooth Version) - Custom Max Speed - Smart Tuning chip, Speed Unlock for Shimano ...
Amazon.com: Customer reviews: SPEEDBOX for Shimano Steps E8000, E7000, E6100 & E5000 | Electric Bike Tuning Chip | Remove Speed Limit for Mid Drive eBike Motor