Traxxas 5211R Roller clutch/ 6x8x0.5 TW (1) (also called one-way bearing) (TRX 2.5, 2.5R, 3.3)

This is a replacement one way clutch bearing for Traxxas monster trucks such as the Traxxas Revo. This is the one way bearing that attaches the pull start or EZ-start assembly to the back of the crank shaft in the TRX 2.5 engines and TRX 3.3 engines.