Home / Honda / TRX250R / Engine / CR500 Main Bearing CR500 Main Bearing$29.95 CR500 8 ball main bearing. CR500 Main Bearing quantity Add to cart Categories: Engine, Honda, TRX250R Description Description CR500 8 ball main bearing. Related products EngineHonda TRX250R Top End Gasket Set HondaTransmission & Clutch Hinson CR125 Fiber Clutch Plates Individual Plates sold individually. HondaIntake 1986 TRX250R Stainless Steel Intake For 1986 TRX250R only. ExhaustHonda TRX250R LED Big Bore Silencer Round Small Body For motor sizes 330-430. Round muffler small body. For use with LED 350G, 350D, and Puma exhaust.