{"product_id":"piston-kit-91-91-yamaha-yz-wr-250-68-5mm-0-5mm-over-vintco-psy21-0-5","title":"PISTON KIT 91-91 YAMAHA YZ WR 250 68.5mm 0.5mm OVER VINTCO PSY21-0.5","description":"\u003cp\u003eVintCo piston kit PSY21-0.5 is a replacement piston assembly for 1991 Yamaha YZ250 and WR250 2-stroke models. Supplied in a 68.5 mm size with +0.5 mm oversize, this kit is intended for engine rebuild work and includes the piston, rings, pin and clips. It is manufactured using modern materials and production methods for OEM-style fitment and performance, with a MoS2 coating to support initial running-in.\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\u003eMoS2 coating supports break-in\u003c\/li\u003e\n\u003cli\u003eWrist pin bearing sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVintCo Part Number: PSY21-0.5\u003c\/li\u003e\n\u003cli\u003ePiston diameter: 68.5 mm\u003c\/li\u003e\n\u003cli\u003eOversize: +0.5 mm\u003c\/li\u003e\n\u003cli\u003ePiston size: 68.44 mm\u003c\/li\u003e\n\u003cli\u003eClearance: 0.06 mm\u003c\/li\u003e\n\u003cli\u003eConstruction: Forged piston\u003c\/li\u003e\n\u003cli\u003eMade in 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":52893031301386,"sku":"vin-psy21-0.5","price":151.16,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/2757\/4026\/files\/psy21-0-5_1.jpg?v=1776851055","url":"https:\/\/2bros-mx.com\/products\/piston-kit-91-91-yamaha-yz-wr-250-68-5mm-0-5mm-over-vintco-psy21-0-5","provider":"2bros-mx.com","version":"1.0","type":"link"}