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Fits: Yamaha YZ 85 2002-2013
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: 47.46mm bore
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 85 2002-2013. Notes: 47.46mm bore.