Prox Piston Kit Xr650r `00-07 10.0:1 (99.94mm)

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 Bore - Standard 100.00 mm Boss Space In 19.20 mm Compression Height 17.50 mm Country of Origin USA OEM Reference No 13101-MBN-670 Piston Head Type Hollow Piston Pin Hole Diameter 23.00 mm Piston Size 99.94 mm Skirt Coating - Total Height 59.00 mm