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Discussions Question and Answer Forums Razor Electric Scooter, Bike, and Go Kart Modification Forum

Razor MX350 MX400 dirt bike variable speed mods

My son has an older Razor MX350 that has the single speed throttle....what speed controller and throttle do I need to make it variable speed?


Also will that controller handle another battery (36 Volt)?

We carry a plug-and-play variable speed throttle and controller kit for Razor MX350 version 9-32, item # RAZ-EKIT8:

https://cart.electricscooterparts.com/variable-speed-throttle-and-controller-kit-for-razor-mx350-version-9-32-mx400-version-1-32-pocket-mod-version-13-44-and-pocket-rocket-version-7-26


We also carry a plug-and-play variable speed throttle and controller kit for Razor MX350 version 33+, item # RAZ-EKIT10:

https://cart.electricscooterparts.com/variable-speed-throttle-and-controller-kit-with-top-speed-adjustable-limiter-for-razor-e200/e200s/e225-version-13-e300/e300s/e325-version-11-and-13-mx350-mx400-and-zr350-version-33-pocket-mod-scooter-v45-pr200-pocket-rocket-v27


RAZ-EKIT8 and RAZ-EKIT10 can also be found on the Razor MX350 parts page: https://electricscooterparts.com/razormx350.html


And thay can also on the Razor MX400 parts page: https://electricscooterparts.com/razor-mx400-parts.html


The controllers in these kits are rated for 24 Volts. We are not sure how they would handle being overvolted to 36 Volts. We have 36 Volt controllers that could be custom installed on the MX350 though. 

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