Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest, state of the art CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use. Uses an OEM style tin coating to assist the break-in process when you first start your machine. Fits: Yamaha YZ 125 2002-2004. Notes: 53.95mm bore.
- Fits: Yamaha YZ 125 2002-2004
- Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips
- ProX pistons are precision machined on the latest, state of the art CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use
- Uses a moly coated skirt that not only assists the break-in process, but also helps reduce friction and increase performance for the life of the piston
- Notes: 53.95mm bore
- Fits: Yamaha YZ 125 2002-2004
- Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips
- ProX pistons are precision machined on the latest, state of the art CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use
- Uses a moly coated skirt that not only assists the break-in process, but also helps reduce friction and increase performance for the life of the piston
- Notes: 53.95mm bore
