{"product_id":"wiseco-piston-kit-67-50-mm-suzuki-405m06750","title":"Wiseco Forged Piston Kit - 405M06750 | Fits 1977-1981 Suzuki RM250 \u0026 PE250 Rebuild (67.50 mm \/ +0.5 mm)","description":"\u003cp\u003eRevitalize the classic two-stroke powerplant of your vintage Suzuki dirt bike with the \u003cb\u003eWiseco Forged Piston Kit (Part No. 405M06750)\u003c\/b\u003e. Engineered for a 67.50 mm cylinder bore size, this kit represents a 0.50 mm oversize (+0.020 in) over the stock 67.00 mm bore, making it the ideal solution for boring and refreshing a worn-out cylinder.\u003c\/p\u003e\n\u003cp\u003eForged from high-strength aerospace aluminum using Wiseco’s advanced dedicated tooling, this piston delivers superior structural integrity, exceptional thermal conductivity, and long-lasting durability under demanding off-road conditions. The double-ring configuration ensures optimal sealing and compression retention throughout the RPM range.\u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Years \/ Variants\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSuzuki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRM250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1977–1981\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1977, 1978, 1979, 1980, 1981 (B\/C\/N\/T\/X models)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSuzuki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePE250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1977–1981\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1977, 1978, 1979, 1980, 1981 (Enduro models)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eKit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eForged Aluminum Piston (67.44 mm piston diameter for 67.50 mm cylinder bore)\u003c\/li\u003e\n\u003cli\u003ePiston Ring Set (Part #2658CD)\u003c\/li\u003e\n\u003cli\u003eWrist Pin (Part #S524)\u003c\/li\u003e\n\u003cli\u003eCirclips (Part #CW18)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Tip\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWhen boring and honing your vintage Suzuki cylinder to match this 0.50 mm oversize piston, always verify final wall clearance using a precision bore gauge. Lightly chamfer all newly machined port windows with a fine stone to prevent ring snagging, and generously pre-lubricate the piston skirt and wrist pin with clean two-stroke premix oil prior to final assembly.\u003c\/p\u003e","brand":"WISECO","offers":[{"title":"Default Title","offer_id":54677068218647,"sku":"405M06750","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/148207.png?v=1786583327","url":"https:\/\/twostrokesonly.com\/products\/wiseco-piston-kit-67-50-mm-suzuki-405m06750","provider":"🏁Two-Strokes Only🏁","version":"1.0","type":"link"}