{"product_id":"prox-piston-kit-rm-z250-07-09-13-4-1-76-98mm","title":"Prox Piston Kit Rm-z250 `07-09 13.4:1 (76.98mm)","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.     Product specifications    Attribute Value     Bore - Actual 77.00 mm   Bore - Standard 77.00 mm   Boss Space In 18.40 mm   Compression Height 11.70 mm   Compression Ratio - Actual 13.4:1   Country of Origin Japan   OEM Reference No 12111-10H20-0F0   Piston Head Type Dome   Piston Pin Hole Diameter 16.00 mm   Piston Size 76.98 mm   Skirt Coating -   Total Height 35.95 mm   ","brand":"PROX","offers":[{"title":"Default Title","offer_id":54188069945690,"sku":"01.3338.C","price":206.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/6831\/5738\/files\/pim_1000-1000_540747c0-a8ce-40ad-b4b1-ab7678bb5101.jpg?v=1782320686","url":"https:\/\/grafiteoffroad.com\/products\/prox-piston-kit-rm-z250-07-09-13-4-1-76-98mm","provider":"Grafite Offroad","version":"1.0","type":"link"}