{"product_id":"piston-kit-91-91-yamaha-wr-yz-250-69-5mm-1-5mm-over-vintco-psy21-1-5","title":"PISTON KIT 91-91 YAMAHA WR YZ 250 69.5mm 1.5mm OVER VINTCO PSY21-1.5","description":"\u003cp\u003eVintCo piston kit PSY21-1.5 is a complete oversize replacement kit for 1991 Yamaha WR250 and YZ250 models. Intended for vintage 2-stroke engine rebuilds, it includes the piston, rings, pin and clips, and is produced using modern materials and manufacturing methods for OEM-equivalent fit and performance. A wrist pin bearing is available separately, and additional size options are also available.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete piston kit with piston, rings, pin and clips\u003c\/li\u003e\n\u003cli\u003eSuitable for vintage 2-stroke engine rebuilds\u003c\/li\u003e\n\u003cli\u003eOEM-equivalent fit and performance\u003c\/li\u003e\n\u003cli\u003eWrist pin bearing sold separately\u003c\/li\u003e\n\u003cli\u003eAdditional size options available\u003c\/li\u003e\n\u003cli\u003eMoS2 coating to aid running-in\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVintCo Part Number: PSY21-1.5\u003c\/li\u003e\n\u003cli\u003eBore size: 69.5 mm\u003c\/li\u003e\n\u003cli\u003eOversize: +1.5 mm\u003c\/li\u003e\n\u003cli\u003ePiston size: 69.44 mm\u003c\/li\u003e\n\u003cli\u003eClearance: 0.06 mm\u003c\/li\u003e\n\u003cli\u003ePiston type: Forged\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1991 Yamaha WR250\u003c\/li\u003e\n\u003cli\u003e1991 Yamaha YZ250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vintco","offers":[{"title":"Default Title","offer_id":52893031530762,"sku":"vin-psy21-1.5","price":151.16,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/2757\/4026\/files\/psy21-1-5_1.jpg?v=1776851059","url":"https:\/\/2bros-mx.com\/products\/piston-kit-91-91-yamaha-wr-yz-250-69-5mm-1-5mm-over-vintco-psy21-1-5","provider":"2bros-mx.com","version":"1.0","type":"link"}