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 ATC250RExhaust ATC250R Small Bore Exhaust LED ATC250R pipe. For 85-86 Honda ATC250R. For engine sizes 250-310. Best for dunes, MX, flat track, and play riding. Raw finish ExhaustHonda TRX250R Big Bore Pipe 350D LED 350D exhaust. For use with motor sizes of 330-390 For cross country, MX and trail riding applications. Price is for the pipe only. ExhaustHonda TRX250R Small Bore Exhaust 250C LED 250C pipe. For engine sizes 250-310. Best for dunes, MX, flat track, and play riding. Raw finish HondaTransmission & Clutch TRX250R Steel Clutch Plates Individual Plates sold individually.