{"product_id":"crankshaft-bottom-kit-2003-2013-yamaha-yzf250-wiseco-wpc140","title":"Crankshaft Bottom Kit 2003-2013 Yamaha YZF250 Wiseco WPC140","description":"\u003cp\u003eA factory-assembled crankshaft kit supplied with main bearings and a gasket set for complete bottom-end service. Precision-trued to OEM specifications, it incorporates advanced surface treatments, lubrication features and tightly controlled clearances to support durability and performance under high-RPM operation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePrecision-trued to OEM specifications and factory assembled\u003c\/li\u003e \u003cli\u003eConnecting rods are double-forged to maintain superior dimensional consistency through improved grain flow\u003c\/li\u003e \u003cli\u003eShot-peened to eliminate residual stresses and smoothly blend rod forging surfaces\u003c\/li\u003e \u003cli\u003eCorrosion-resistant surface treatment\u003c\/li\u003e \u003cli\u003eTop and bottom end rod bores case-hardened to 58–62 RC to optimise bearing running surface\u003c\/li\u003e \u003cli\u003eCrank pin bearing radial running clearance optimised to ensure maximum performance\u003c\/li\u003e \u003cli\u003ePrecision honing ensures an ultra-round bearing surface\u003c\/li\u003e \u003cli\u003ePrecision-engineered oiling slots maximise rod strength and bearing life\u003c\/li\u003e \u003cli\u003eDouble-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of the top end due to thermal transfer from the piston\u003c\/li\u003e \u003cli\u003eSilver-coated bronze phosphor thrust washers with dimpled design increase oil retention and reduce friction between rod and washer interface\u003c\/li\u003e \u003cli\u003eCrank pin bearings manufactured with the highest-quality hot-rolled steel — case-hardened to 58–62 RC\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eManufacturer: Wiseco\u003c\/li\u003e \u003cli\u003eProduct type: Crankshaft kit with bearings and gaskets\u003c\/li\u003e \u003cli\u003eIncluded components: Crankshaft assembly, main bearings, gasket set\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWPC140\u003c\/li\u003e \u003cli\u003e56-229.WI\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eYamaha YZ250F (2003–2013)\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- venture-connect-compatibility:start --\u003e\n\u003csection class=\"venture-connect-compatibility\"\u003e\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003ePlease check the exact model and year before ordering.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZF 250\u003c\/td\u003e\n\u003ctd\u003e2003-2013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZ F 250\u003c\/td\u003e\n\u003ctd\u003e2003-2013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003c!-- venture-connect-compatibility:end --\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":57504319799676,"sku":"56-229.WI","price":606.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/56-229-wi.jpg?v=1790408496","url":"https:\/\/radhouse.co.uk\/products\/crankshaft-bottom-kit-2003-2013-yamaha-yzf250-wiseco-wpc140","provider":"Radhouse","version":"1.0","type":"link"}