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Before buying
It ensures correct display of speed
– Bergamont E-Vitess Expert
The Furiosu Evo tuning device for Yamaha can be activated/deactivated by simply pressing the ebike’s light button
PearTune MSO is ON
SPEEDi for Specialized Tero 3.0 ST (2023 - 2024) ANS Before buyingThe 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