ProX Titanium Exhaust Valve YZ450F 20-22 + WR450F 21-23 ProX offers a complete range of high quality Titanium Valves for MX and ATV segment.The ProX Titanium Valves are forged in one piece for extra...

ProX Con Rod Kit YZ450F 20-22 + WR450F 21-23 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...

ProX Piston Kit YZ450F 20-22 + WR450F 21-23 13.0:1 (96.95mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is...

ProX Piston Kit YZ450F 20-22 + WR450F 21-23 13.0:1 (96.97mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is...

Vertex Ti Intake Valve YZ450F 20-22/WR450F 21-23/Fantic XXF450 22-24 Elevate the performance and durability of your modern 4-stroke engine with Vertex Titanium one-piece intake valves, offering...

ProX Piston Kit Yamaha YZ450F 20-22/WR450F 21-23 13.0:1 (96.96mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy...