Prox Kolbenkit Cr500 `82-01 (90.25mm)

ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc. Coated for ultimate performance Most of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike. We have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.   Product specifications Attribute Value Additional Info Reed cut-out, Cast Piston Bore - Actual 90.25 mm Bore - Oversize 1.25 mm Bore - Standard 89.00 mm Boss Space In 30.00 mm Compression Height 30.00 mm Country of Origin Japan OEM Reference No 13101-MAC-680 Piston Head Type Dome Piston Pin Hole Diameter 20.00 mm Ring Locating Pin (E) 19.00 mm Ring Locating Pin (F) 19.00 mm Skirt Coating Mos2 Skirt Coating Text on Piston PROX / HM50086 / JAPAN Total Height 87.00 mm