OS Speed B2101 Ty Tessman Edition Engine Bearing Kit. This kit contains the front and rear bearing, select from Standard (Steel), Ceramic Hybrid (Steel rings / Ceramic balls), and Steel front / Ceramic Rear.
MX Series Ceramic Bearings are a new design of engine bearing with an Offset Internal Track for greater load capabilities, a stronger, thicker PA46 Retainer for greater resistance to high nitro content fuel. Grade 5 Ceramic Balls for closer tolerance and longer life.Ceramic balls are lighter for less centrifugal force allowing Engines to spin at a higher RPM and to accelerate faster.
