{"product_id":"prox-piston-kit-yz125-97-01-53-97mm","title":"Kit Piston Prox Yz125 `97-01 (53.97mm)","description":"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. \nCoated for ultimate performance\nMost 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. \u0026nbsp; \u0026nbsp; Product specifications    Attribute Value     Additional Info Intake Hole, 2 Lub. Holes Exh. Skirt, Cast Piston   Bore - Actual 54.00 mm   Bore - Oversize STD   Bore - Standard 54.00 mm   Boss Space In 18.20 mm   Compression Height 20.50 mm   Country of Origin Japan   OEM Reference No 4XM-11631-30-A0   Piston Head Type Dome   Piston Pin Hole Diameter 15.00 mm   Piston Size 53.97 mm   Ring Locating Pin (E) 13.00 mm   Skirt Coating Mos2 Skirt Coating   Total Height 60.30 mm   ","brand":"PROX","offers":[{"title":"Default Title","offer_id":54186810671450,"sku":"01.2217.C","price":141.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/6831\/5738\/files\/pim_6c24c5ae-f255-4241-9281-8f7d6c2726aa_1000-1000.jpg?v=1779449788","url":"https:\/\/grafiteoffroad.com\/fr\/products\/prox-piston-kit-yz125-97-01-53-97mm","provider":"Grafite Offroad","version":"1.0","type":"link"}