Prox Kolbenkit Jog50 + Minarelli -3cp/2ja- (40.00mm)

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 2 Intake Holes, Cast Piston Bore - Actual 40.00 mm Bore - Oversize STD Bore - Standard 40.00 mm Boss Space In 13.00 mm Compression Height 20.50 mm Country of Origin Japan Piston Head Type Dome Piston Pin Hole Diameter 10.00 mm Ring Locating Pin (E) 11.50 mm Ring Locating Pin (F) 11.50 mm Skirt Coating - Total Height 50.50 mm