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This Peartune tuning kit is made to fit bicycles with the Shimano E8000 / E7000 / E5000 / E5100 / E6001 / E6002 / E6010
Installation is a breeze
Going from a heavy steel rear sprocket to this lightweight aluminum you will feel the difference immediately - unsprung rotational mass is VERY important to the bikes acceleration
Not compatible: Specialized Levo S1 due to tight head tube
SPEEDi for Giant Reign E+ 3 (2022-2024) speedbox This Peartune tuning kit isThe 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