ProTek R/C 5x10x4mm Rubber Sealed "Speed" 1/8 Clutch Bearings (10)
[PTK-MR105-2RS]

ProTek R/C 5x10x4mm Rubber Sealed "Speed" 1/8 Clutch Bearings (10)
Xray - Rating: 5 of 5 Stars! Verified Owner Tuesday, May 03, 2011
Great bearings for the stock Xray XT8 pinion. They outlast anything I've used to date. I just ordered two more packages