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: Kawasaki KX 250 F 2004-2005; Suzuki RM-Z 250 2004-2006. Notes: 76.96mm bore, standard compression 12.6:1, forged piston.
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