Renthal Sprocket Twinring Red 50T Bi-metal Grooved Model_Leatt Premium T-Shirt and the round shape helps

and the round shape helps the rider bounce off trees and obstacles

Used to turn the eccentric hub which tightens the chain

if used regularly

1/2" square drive enables use with a torque wrench

Renthal Sprocket Twinring Red 50T Bi-metal Grooved Model_Leatt Premium T-Shirt and the round shape helpsThe Renthal Twinring Rear Sprocket is a long lasting durable Off Road sprocket that was developed and tested over the course of 5 years. The unique flat face two piece design keeps weight to a minimum and maximizes durability all while keeping a narrow profile. The outer steel ring is expanded at 200C and then fitted to the aluminium inner before cooling, this process creates a permanent bond while flat socket set screws prevent lateral movement