Ceramic rear bearing designed to fit the O.S. MAX RZ-V01b, RZ-V99b, RB Concepts S7/WS7/WS7II, Novarossi N21BF and OPS Engines.
This bearing also fits any engine that requires a rear bearing with the dimensions 13mm x 25mm x 6mm thick.
The bearing has an offset race to provide better crankshaft support. INSTALLATION: *Balls face the rear of the engine.*

The bearings have double the RPM capability over steel and reduce friction,rotating mass and vibration.

Used and recommended by Team Losi's Adam Drake, Jammin's Gary Guest and many top racers around the world.