Amazon.com: Customer reviews: SPEEDBOX for Shimano Steps E8000, E7000, E6100 & E5000 | Electric Bike Tuning Chip | Remove Speed Limit for Mid Drive eBike Motor
Speedbox 1.0 for SHIMANO E8000, E7000, E6100, E5000 engines
Amazon.com: Customer reviews: SPEEDBOX for Shimano Steps E8000, E7000, E6100 & E5000 | Electric Bike Tuning Chip | Remove Speed Limit for Mid Drive eBike Motor
Speedbox 1.0 for SHIMANO E8000, E7000, E6100, E5000 engines