The black coating is made from a delicate mix of materials and will increase performance. 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! Please note: Image for illustration. All cheques are to be made payable to Dennis Winter Ltd. This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Pistons, Rings & Pistons Kits". The seller is "denniswinters" and is located in this country: GB. This item can be shipped to United Kingdom, North, South, or Latin America, all countries in continental Asia, European Union, Australia, New Zealand, Norway, Switzerland, Egypt, Guernsey, Gibraltar, Iceland, Jersey, Liechtenstein, Monaco, Reunion, South Africa.