{"title":"All Rieju Parts","description":null,"products":[{"product_id":"connecting-rod-kit-gas-hon","title":"ProX Connecting Rod Kit - 03.1315 | Fits GasGas, Honda, \u0026 Rieju Crankshaft Rebuild","description":"\u003cp\u003eFortify your two-stroke powerplant with the \u003cb\u003eProX Connecting Rod Kit (Part No. 03.1315)\u003c\/b\u003e. Manufactured in Japan from ultra-tough, double-forged alloy steels, this kit is engineered to withstand intense thermal and mechanical loads while meeting or exceeding strict OEM specifications for dependable durability.\u003c\/p\u003e\n\u003cp\u003eEach rod is shot-peened and barrel-finished to completely eliminate surface micro-imperfections, relieve residual stress, and optimize structural grain flow for maximum fatigue resistance. Strategically placed lubrication slots ensure optimal oil feed and cooling to the big-end bearing, keeping your rotating assembly reliable under hard acceleration.\u003c\/p\u003e\n\u003ch4\u003eVehicle Fitment\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGasGas\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEC 300 \/ XC 300\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2000–2019\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2000 through 2019 (Select years omitted by manufacturer)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHonda\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCR250R\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1984–2001\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1984 through 2001\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRieju\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMR 300 Racing \/ Pro\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2021\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2021\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eKit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eForged Connecting Rod\u003c\/li\u003e\n\u003cli\u003eCrankpin\u003c\/li\u003e\n\u003cli\u003eBig-End Bearing\u003c\/li\u003e\n\u003cli\u003eSmall-End (Wrist Pin) Bearing\u003c\/li\u003e\n\u003cli\u003eThrust Washers (where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTSO Tip\u003c\/h3\u003e\n\u003cp\u003eWhen rebuilding your bottom end, always verify that your crankshaft total indicated runout (TIR) measures under 0.03mm on V-blocks before dropping the assembly back into the cases. Generously pre-lubricate the lower rod bearing with clean two-stroke premix oil during assembly to protect the moving parts the split-second the engine fires.\u003c\/p\u003e","brand":"PROX","offers":[{"title":"Default Title","offer_id":54558226088215,"sku":"19-9001","price":132.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/bffe-572a58e73be18.jpg?v=1785266421"},{"product_id":"piston-kit-forged-66-34-std-gas","title":"Vertex Forged Replica Piston Kit 66.34mm Size B (175-23249B \/ 23249B) | Gas-Gas, Rieju \u0026 TM 250cc","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHigh-performance forged replacement piston kit engineered to restore top-end compression and crisp throttle response, matched to a Size B cylinder bore tolerance. Forged from high-tensile 2618 aluminum alloy for superior strength and durability under extreme RPM, featuring a friction-reducing Molybdenum Disulphide skirt coating for a faster break-in and extended component life.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 175-23249B\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand Number:\u003c\/b\u003e 23249B\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Forged Replica Piston Kit (Includes forged piston, rings, wrist pin, and circlips)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSize \/ Bore:\u003c\/b\u003e Size B (66.34 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e High-strength forged 2618 aluminum alloy with T-6 heat treatment and MoS2 skirt coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\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\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGas-Gas\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEC 250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Off-Road \/ Enduro\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2002–2015\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRieju\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMR 250 Racing\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Off-Road \/ Enduro\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2021\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEN 250 2T \/ MX 250 2T\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Off-Road \/ Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1996–1999\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA heavy-duty forged top-end upgrade built to handle the rigorous demands of hard enduro and off-road riding across multiple European platforms. The superior tensile strength of the 2618 alloy paired with the MoS2 skirt coating ensures exceptional reliability and thermal stability under aggressive loads.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"VERTEX","offers":[{"title":"Default Title","offer_id":54585068552471,"sku":"175-23249B","price":223.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/9056-5d41bdea40b3e.jpg?v=1785607027"},{"product_id":"factory-links-shock-bearing-kit-lower-gas-gas-rieju-yamaha-lsa-y-002","title":"FACTORY LINKS Shock Bearing Kit - Lower - Gas Gas\/Rieju\/Yamaha LSA-Y-002","description":"\u003cp\u003eFACTORY LINKS Shock Bearing Kit - Lower - Gas Gas\/Rieju\/Yamaha\u003c\/p\u003e","brand":"FACTORY LINKS","offers":[{"title":"Default Title","offer_id":54611006947607,"sku":"13130232","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/2829073.png?v=1785963058"}],"url":"https:\/\/twostrokesonly.com\/collections\/all-rieju-parts.oembed","provider":"🏁Two-Strokes Only🏁","version":"1.0","type":"link"}