Chain Tensioner Fit Razor MX500 MX 650&SX500 Dirt Rocket RSF650 Electric Bike
For Razor MX500, MX 650&SX500 Dirt Rocket, as well as the Razor RSF650 Electric Sport Bike. CHAIN TENSIONER W15128190079 For Razor MX500 MX650 Dirt Bike. 1 CHAIN TENSIONER. Adjust the tightness of the chain.