SPEEDi for Trek Rail 7 / 9 / 9.7 / 9.8 / 9.9 (2020 - 2023) Brose2014-2020 Which Volspeed Tuning Kit do

Which Volspeed Tuning Kit do I need

People do seem to break these parts from time to time - either from crashing hard or overtightening the mounting screws

After purchase

You can set the maximum speed of an electric assistance by changing modes three levels down and then three levels up

ensuring endurance without sacrificing performance

SPEEDi for Trek Rail 7 / 9 / 9.7 / 9.8 / 9.9 (2020 - 2023) Brose2014-2020 Which Volspeed Tuning Kit doThe SPEEDi is an e bike speed limit increaser. Designed, tested and manufactered in New Zealand, our SPEEDi uses a mechanical planetary gear system to increase your standard e bike speed limit by 1. 5. Please note that the SPEEDi is very specific to the chosen Bike, Hub and Disc setup. Please don't assume that because your bike is similar it will fit, as it likely won't. If you're not 100% sure, please contact us. Please refer to the Hub picture