ProX Piston Pin Bearing YZ250 99-23 (18x22x22) ProX offers a complete line of piston pin bearings for the Dirtbike, ATV, PWC and 50cc/scooter segment. The pistons pin bearings are manufactured by...

ProX Big End Pin (24x59.00mm) YZ250 99-23 Our chromed crank pins are specially designed for the application. Every ProX crank pin is machined precisely and treated to get the best hardness and...

ProX Piston Kit YZ250 99-23 + RM250 03-12 (66.36mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is...

ProX Piston Kit YZ250 99-23 + RM250 03-12  (66.35mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used...

ProX Con Rod Kit YZ250 99-23 + YZ250X 16-23 One of our core product line, where we became famous with. Our ProX Connecting Rod Kits are made out of the toughest alloys available today and are made in...

ProX Countershaft Seal Kit YZ250 99-23 + YZ250X 16-23 CRANKSHAFT BEARING and SEAL KITS: ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and...