# The razor wiki has been migrated to the electric moto forum. Please visit [electricmoto.org](https://forum.electricmoto.org/t/mx500-mx650-and-rsf650-wiki) for updated wikis # MX350 and RSF350 ## Motor upgrade * I toss my old 500 or 650 dc motor in the 350. * Need to weld on the foot mounts from the old motor and add some spacers but otherwise works well. ## Brakes * My kid's hands were too small to pull the brake handle so I replaced the big one with [this smaller one](https://www.amazon.com/gp/product/B06XXHL4ZS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1).