Roller Clutch/One Way Bearing 5211R

Roller clutch/ 6x8x0.5 TW (1) (also called one-way bearing) (TRX 2.5, 2.5R, 3.3)
 
Replacement part for these models:
Jato
Nitro Rustler
Nitro Slash
Revo
Slayer Pro 4X4
T-Maxx
TRX 2.5R
TRX 3.3