Kawasaki 2011-12 Ultra 300 8.4:1 Cr

piston kits

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.

prox pistons for nicasil/plated cylinders

the latest cylinders are plated by a nicasil plating.Therefore we offer a wide range of prox pistons in standard size, as well as in a, b, c, d+ oversizes.

prox pistons for sleeved cylinders

prox piston kits for sleeved cylinders are available in standard size and a wide range of oversizes.The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities.Take advantage of the additional oversizes to extend the lifespan of plated cylinders.All prox piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!