SPEEDi for Trek Powerfly FS 4 (2021 - 2022)

SPEEDi for Trek Powerfly FS 4 (2021 - 2022)The 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

Disc: SM-RT800 Centerlock

Activation: ONE short press of WALK button and/or [+ - + -] buttons

Bike: Specialized Levo Expert 2019 - 2023

Now compatible with e-bikes:

In combination with the TM25 motor the max power is 25kW

Electric bikes equipped with SpeedFun products can be used exclusively on private property and entirely at one’s own risk

- Yamaha bikes that were produced in Asian markets (might have different connectors)

If you disconnect the red power cable

made from 6061 aluminum which is way stronger than the original part

after bypassing

you’ll get better ergonomics and improved suspension performance for higher jumps

In this case you can just use the combination of ↑↓↑↓ buttons and SpeedBox will be activated