{"product_id":"wiseco-4764m08750-piston-kit-0-50mm-oversize-to-87-91mm-9-1-compression","title":"Wiseco 4764M08750 Piston Kit - 0.50mm Oversize to 87.91mm, 9:1 Compression","description":"Bore: 87.91mm\u003cbr\u003e Compression: 9:1 Compression\u003cbr\u003e Sizing: 0.50mm Oversize\u003cbr\u003e\u003cbr\u003eSPECIFICATIONS. \u003cbr\u003eDisplacement: 502cc. \u003cbr\u003eBore - Standard: 87.00mm. \u003cbr\u003eBore - Actual: 87.50mm. \u003cbr\u003eBore - Oversize: 0.50mm. \u003cbr\u003eStroke: 84.00mm. \u003cbr\u003eCompression Ratio - Actual: 9:1. \u003cbr\u003eNote: Cylinder boring required. \u003cbr\u003eNote: European Models. \u003cbr\u003eITEM CONTENTS. \u003cbr\u003e3445XC - 87.50 mm Ring Set. \u003cbr\u003eCW20 - ROUND WIRE PIN LOCKS 20MM (PAIR). \u003cbr\u003eS553 - PistonPin 20mm x 2.185in. NonChromed TW\u003cbr\u003e \u003cbr\u003e All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of todays cylinder bore compositions. Wisecos state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in todays market place.\u003cbr\u003e\u003cbr\u003eVehicle Fitment:\u003cbr\u003e\u003cbr\u003e1978-1981 Yamaha SR500\u003cbr\u003e 1977-1981 Yamaha TT500\u003cbr\u003e 1976-1981 Yamaha XT500","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":44019092783226,"sku":"4863528","price":237.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0004\/3312\/7455\/files\/0693ac0dfd5290c336623edf4106bc76_c1562a38-be86-4d76-9c5d-20cf90541fa8.jpg?v=1751522215","url":"https:\/\/www.powersportsuperstore.com\/products\/wiseco-4764m08750-piston-kit-0-50mm-oversize-to-87-91mm-9-1-compression","provider":"Powersport Superstore","version":"1.0","type":"link"}