ProX Valve Stem Seal KX250F 04-23 + RM-Z250 04-06 ProX offers a wide range of valve stem seals for the MX, Dirt Bike, Road Bike and ATV segment.The seals are manufactured by the leading OEM factories...

ProX Inner Clutch Hub KX250F 04-17 + RM-Z250 04-06 ProX offers a complete line of inner clutch hubs for the Dirtbike and ATV segment. The inner hubs are manufactured by the leading OEM factory in...

ProX Piston Ring Set KX250F 04-05 RM-Z250 04-06 (77.00mm) ProX piston rings are made by OEM factories to exact specifications. ProX uses well known brands like Rikken Japan, TP and NPR to be sure...

ProX Clutch Spring Kit KX250F 05-19 + RM-Z250 05-06 ProX Heavy Duty Clutch Spring Kits are approximately 10% stiffer than the OEM spring and will reduce clutch slippage under extreme conditions for...

ProX Con Rod Kit KX250F 04-09 + RM-Z250 04-23 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...

ProX Clutch Rubber Set KX250F 06-23 + RM-Z250 06 ProX Clutch Basket Rubbers are Nnold sold in kits and are perfect for replacing worn out rubber cushions on all types of clutch baskets. Note Clutch...