{"title":"Yfz450 r\/x Engine","description":"Shop all Engine Parts","products":[{"product_id":"bnr-custom-piston-yfz450","title":"BNR Custom Piston YFZ450\/YFZ450R","description":"\u003cp\u003e\u003cspan\u003eBNR Race \u003c\/span\u003e\u003cspan\u003ePiston\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is the BNR Race piston. This piston is used by more Yamaha ATV GNCC Pros than any other piston on the market currently ran by 4 of 5 Yamaha GNCC Pros. This piston Hi comp recommend race gas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"productFeature\"\u003eUtilizes OEM Yamaha Rings\u003c\/li\u003e\n\u003cli class=\"productFeature\"\u003eIncludes Oem rings, Wrist pin, Circlips and Piston\u003c\/li\u003e\n\u003cli class=\"productFeature\"\u003eRuns much cooler than other race pistons on market\u003c\/li\u003e\n\u003cli class=\"productFeature\"\u003eLarge Horsepower increase for reasonable cost\u003c\/li\u003e\n\u003cli class=\"productFeature\"\u003ePiston Fits YFZ450 and YFZ450R\u003c\/li\u003e\n\u003cli class=\"productFeature\"\u003eSelect Year Crankshaft in ATV\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BNR Motorsports","offers":[{"title":"2004-2009","offer_id":12568518197318,"sku":"BNRPISTON-1","price":269.95,"currency_code":"USD","in_stock":true},{"title":"2009-2013","offer_id":13778049204294,"sku":"BNRPISTON-2","price":269.95,"currency_code":"USD","in_stock":true},{"title":"2014-2027","offer_id":13778049237062,"sku":"BNRPISTON-3","price":269.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/pistongt_med.jpg?v=1534198151"},{"product_id":"yfzr-intake-cam-xc2","title":"YFZR INTAKE CAM XC2","description":"\u003cp\u003eYFZ450r\/x intake camshaft.\u003c\/p\u003e\n\u003cp\u003eINTAKE CAMSHAFT FOR XC\/MX RACING FOR 09-23 YFZR 450 AND YFZ450. \u003c\/p\u003e\n\u003cp\u003e-WELDED FOR DURABILITY\u003c\/p\u003e\n\u003cp\u003e-CUSTOM SETUP DEGREED AND WELDED\u003c\/p\u003e\n\u003cp\u003e-FOR USE ON STOCK OR PORTED HEADS FOR PLUS 1 HEADS WE RECOMMEND OUR OTHER CAMSHAFT\u003c\/p\u003e\n\u003cp\u003e-This Cam is a Perfect Drop in cam for a large mid to top end increase for more motor options please contact us.\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":14684525756486,"sku":"","price":309.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/cam.jpg?v=1538623537"},{"product_id":"yamaha-yfz450r-yfz450-clutch-fibers","title":"Yamaha YFZ450R\/YFZ450 Clutch Fibers","description":"This is a full set of OEM style clutch fibers for the yamaha YFZ450r and YFZ450. Will fit 09-13 yfz450r and 04-08 yfz450. It will not fit if you still have the slipper style clutch in the 14 up yfz450r.","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":20449407926342,"sku":"YFZ450ClutchFibers","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/2018-12-04_17.48.51.jpg?v=1550933180"},{"product_id":"yamaha-bnr-pro-plus-intake-cam-yfz450r","title":"BNR PRO Plus Intake Cam YFZ450R","description":"\u003cp\u003e-Custom made for us by Dasa\u003cbr\u003e-Welded gear\u003cbr\u003e-High horsepower cam\u003cbr\u003e-This cam is and upgrade over our other cam but mainly only in heavily built race motors with plus 1 valves for just a drop in upgrade the XC2 cam is more than sufficient\u003c\/p\u003e\n\u003cp\u003e-Full Billett Camshaft\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":29394249580614,"sku":"","price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/2019-06-24_18.13.35.jpg?v=1562899275"},{"product_id":"rekluse-z-start-pro-yfz450r","title":"Rekluse Z Start Pro YFZ450R","description":"\u003cp\u003e-Full Auto Clutch Rekluse\u003c\/p\u003e\n\u003cp\u003e-This includes all pieces you need to put a Z start pro in your yfz450r\u003c\/p\u003e\n\u003cp\u003e-Fits 2008-2019 Yamaha YFZ450R\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":30752281067590,"sku":"","price":869.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/2019-10-09_17.57.19.jpg?v=1571195766"},{"product_id":"yamaha-yfz450r-14-up-clutch-basket-upgrade-kit","title":"Yamaha YFZ450R 14 up Clutch Basket Upgrade Kit","description":"\u003cp\u003e\u003cspan\u003eThis is a new rubber basket for the efi yamaha 450 atvs this is everything you need to convert your newer efi bike to the better basket that doesnt explode causing massive engine damage. Includes Basket,Washer for between the hub and new locking washer. Get a great deal now and make sure you have the correct items to do it.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"style-scope ytd-watch-metadata\"\u003eYamaha YFZ450R Clutches explained\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\"\u003e\u003cspan\u003e https:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":32857230311501,"sku":"","price":417.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoJun30_60400PM_1.jpg?v=1595382847"},{"product_id":"yamaha-yfz450r-oem-water-pump-kit","title":"Yamaha YFZ450R OEM Water Pump Kit","description":"\u003cp\u003e-Includes all oem pieces needed to rebuild a Yamaha YFZ450R water pump efi\u003c\/p\u003e\n\u003cp\u003e-Water pump impeller, Bearing ,Oil seal and Mechanical seal plus housing gasket\u003c\/p\u003e\n\u003cp\u003e-No searching around for what you need its all here.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater pump rebuild kit only \u003c\/li\u003e\n\u003cli\u003eVariant with Side Case Gasket and water pump kit \u003c\/li\u003e\n\u003cli\u003eVariant with seals only includes. Mechanical seal and oil seal \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Water Pump Kit","offer_id":43484948529342,"sku":"","price":159.95,"currency_code":"USD","in_stock":true},{"title":"Kit with Side Case Gasket","offer_id":43484948562110,"sku":"","price":192.95,"currency_code":"USD","in_stock":true},{"title":"Seals Only Kit","offer_id":45563055767742,"sku":null,"price":54.98,"currency_code":"USD","in_stock":true},{"title":"kit with Side Case Cometic Gasket","offer_id":49499009220798,"sku":null,"price":174.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoJun18_54403PM.jpg?v=1597023380"},{"product_id":"yamaha-clutch-basket-billet-basket-moose-racing-cushion-basket","title":"Yamaha Clutch Basket Billet Basket Moose Racing Cushion Basket","description":"\u003cp\u003e-This is aftermarket basket for Cushion style Yamaha YFZ450R\u003c\/p\u003e\n\u003cp\u003e-If you want an upgraded basket to our upgraded kit you need to purchase this basket as well\u003c\/p\u003e\n\u003cp\u003e-These are made by Hinson Racing and are badged as Moose\u003c\/p\u003e\n\u003cp\u003e-This is basket only we have other listings with gears\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":32922171768909,"sku":"","price":225.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoJul30_30420PM_1.jpg?v=1597108045"},{"product_id":"yfz450r-breather-fitting-mod","title":"YFZ450r Breather Fitting Mod","description":"\u003cp\u003eStop your engine from blowing out the stock valve cover fitting, possibly ruining our engine in the process from losing oil.\u003c\/p\u003e\n\u003cp\u003e- Includes new threaded heavy duty fitting.\u003c\/p\u003e\n\u003cp\u003e- Includes tap to cut threads into your stock valve cover.\u003c\/p\u003e\n\u003cp\u003e- We recommend anding expoy to the fitting threads to and oil seeping around thread. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e-picture can vary from parts \u003c\/p\u003e\n\u003cp\u003e-\u003cspan data-mce-fragment=\"1\"\u003eInstallation Video Linked Below\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/6ZB4hy09MVg?si=TIQa_4EhNmtHMGlR\"\u003ehttps:\/\/youtu.be\/6ZB4hy09MVg?si=TIQa_4EhNmtHMGlR\u003c\/a\u003e\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":39547987951806,"sku":"bnrtapkit","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/IMG_5680.jpg?v=1618511734"},{"product_id":"yamaha-yfz450r-crank-and-bearing-kit","title":"Yamaha YFZ450R Crank and Bearing Kit","description":"\u003cp\u003e-Oem Crankshaft fits all 09-21 Yamaha YFZ450Rs\u003c\/p\u003e\n\u003cp\u003e-Oem Crank Bearings\u003c\/p\u003e\n\u003cp\u003e-Package deal so you dont have to go buy it piece by piece \u003c\/p\u003e\n\u003cp\u003e-Exactly what we use here in all our motor builds for the Yamaha\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":39677484007614,"sku":"","price":590.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoMay03_50856PM.jpg?v=1620098819"},{"product_id":"upgraded-clutch-basket-with-hinson-basket","title":"Upgraded Clutch Basket with Hinson Basket","description":"\u003cp\u003e-Everything same as our upgraded clutch basket kit but a step further with a new Hinson Billet Basket already installed.\u003c\/p\u003e\n\u003cp\u003e-No machining or assembly required\u003c\/p\u003e\n\u003cp\u003e-Comes with all washers you need to upgrade your basket\u003c\/p\u003e\n\u003cp\u003e-For a cheaper alternative get our regular upgraded basket setup.\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Upgraded Clutch Basket with Hinson Basket","offer_id":43684394008766,"sku":"","price":499.99,"currency_code":"USD","in_stock":true},{"title":"Hinson Clutch Cover only","offer_id":43684394041534,"sku":"","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoNov04_24843PM.jpg?v=1636054703"},{"product_id":"yamaha-yfz450r-x-oem-clutch-pack-13-and-older","title":"YAMAHA YFZ450R\/X OEM CLUTCH PACK 13 AND OLDER","description":"\u003cp\u003eYZF450R\/X clutch kit for 2013 and older models.\u003c\/p\u003e\n\u003cp\u003e-THIS IS FULL CLUTCH KIT SETUP WITH STEELS,FIBERS,SPRINGS,GASKET\u003c\/p\u003e\n\u003cp\u003e-THIS FITS THE 2013 AND OLDER YAMAHA YFZ450R\/X BEFORE THEY WENT TO THE SLIPPER STYLE\u003c\/p\u003e\n\u003cp\u003e-THIS IS THE BETTER STEEL AND FIBER SETUP\u003c\/p\u003e\n\u003cp\u003e-IF YOU WANT JUST FIBERS WE HAVE THAT KIT AS WELL\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":40904375959742,"sku":"","price":184.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoNov04_24758PM.jpg?v=1636055405"},{"product_id":"yamaha-yfz450r-hinson-full-upgraded-clutch-kit-with-cushion-basket","title":"Yamaha YFZ450R Hinson Full upgraded clutch kit with cushion basket","description":"\u003cp\u003e-This is a full Hinson kit with a cushion basket already installed\u003c\/p\u003e\n\u003cp\u003e-Already installed new OEM basket to Hinson basket no machining or assembly of basket required\u003c\/p\u003e\n\u003cp\u003e-Changes everything over to the much better 2010 clutch setup\u003c\/p\u003e\n\u003cp\u003e-Comes with bolts,washers,gasket,steels,fibers,basket,hub,pressure plate and cover.\u003c\/p\u003e\n\u003cp\u003e- Hinson cover \u003cspan style=\"text-decoration: underline;\"\u003eOR\u003c\/span\u003e Black RRP Engraved Cover available in kit\u003c\/p\u003e\n\u003cp\u003e-This is the best clutch setup money can buy for the Yamaha YFZ450R\u003c\/p\u003e\n\u003cp\u003e-Fits 2009-2026 Yfz450R\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eYamaha YFZ450r Clutches Explained Video Below\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\" rel=\"noopener\" target=\"_blank\"\u003ehttps:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\u003c\/a\u003e\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Kit with Hinson Cover","offer_id":44500563460286,"sku":"","price":1397.96,"currency_code":"USD","in_stock":true},{"title":"Kit with Black RRP Cover","offer_id":44500563493054,"sku":"","price":1339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/PhotoNov04_24719PM_200x200_546953f3-2dd8-440e-8b36-dac6f521cb21.jpg?v=1723565421"},{"product_id":"yamaha-yfz450r-2010-oem-clutch-conversion","title":"YAMAHA YFZ450R 2010 OEM CLUTCH CONVERSION","description":"\u003cp\u003e-THIS IS EVERYTHING YOU NEED TO CONVERT YOUR NEW STYLE SLIPPER CLUTCH TO THE BETTER STYLE OLDER CONVENTIONAL CLUTCH\u003c\/p\u003e\n\u003cp\u003e-BASKET NOT INCLUTED \u003c\/p\u003e\n\u003cp\u003e-THIS PAIRS WELL WITH THE 2010 UPGRADED BASKET KIT\u003c\/p\u003e\n\u003cp\u003e-THIS KIT COMES WITH 6 BOLTS, 8 STEELS, 8 FIBERS,1 GASKET,1 INNER HUB AND 1PRESSURE PLATE\u003c\/p\u003e\n\u003cp\u003eYamaha YFZ450r Clutches Explained Video Below\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\" rel=\"noopener\" target=\"_blank\"\u003ehttps:\/\/www.youtube.com\/watch?v=TPVKEMOTuIs\u003c\/a\u003e\u003c\/p\u003e\n\u003ch1 class=\"style-scope ytd-watch-metadata\"\u003e\u003cbr\u003e\u003c\/h1\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":40905043673278,"sku":"","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoNov04_24500PM_1.jpg?v=1636074882"},{"product_id":"yamaha-yfz450r-2014-and-up-oem-clutch-kit","title":"YAMAHA YFZ450R 2014 AND UP OEM CLUTCH KIT","description":"\u003cp\u003eOEM Replacement clutch kit for YFZR slipper clutches.\u003c\/p\u003e\n\u003cp\u003e-INCLUDES STEELS,SPRINGS,GASKET AND FIBERS\u003c\/p\u003e\n\u003cp\u003e-GOOD IDEA TO FRESHEN CLUTCH UP WHEN INTO THE CLUTCH FOR OTHER UPGRADES ETC\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":40905052291262,"sku":"","price":168.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/PhotoNov04_24900PM.jpg?v=1636075209"},{"product_id":"yamaha-yfz450r-clutch-holder","title":"Yamaha YFZ450R Clutch Holder","description":"\u003cp\u003e-This is a great tool for holding the clutch hub when doing the clutch basket upgrade to get proper torque.\u003c\/p\u003e\n\u003cp\u003e-Easy to use with nice handle to hold for proper install.\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":41377252311230,"sku":"","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/IMG_7873.jpg?v=1650165496"},{"product_id":"yamaha-oem-yfz450r-cylinder","title":"Yamaha OEM YFZ450R Cylinder","description":"\u003cp\u003e-Oem New Factory cylinder\u003c\/p\u003e\n\u003cp\u003e-Pair with our piston and top end gaskets for a fresh rebuild\u003c\/p\u003e\n\u003cp\u003e-Oem cylinders only way to go for longevity of engine\u003c\/p\u003e\n\u003cp\u003e-New in Yamaha Box\u003c\/p\u003e\n\u003cp\u003e-No drop shipping we stock what we sell\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":41479100629182,"sku":"","price":469.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/cylinder.jpg?v=1653536345"},{"product_id":"hinson-inner-hub-yfzr-yfz450","title":"Hinson Inner Hub YFZR YFZ450","description":"\u003cp\u003e-Hinson Inner Hub only for Yamaha YFZ450 YFZ450R\u003c\/p\u003e\n\u003cp\u003e-Improve Clutch performance\u003c\/p\u003e\n\u003cp\u003e-Allow clutch assembly top sin more true so less heat is created when clutch is disengaged\u003c\/p\u003e\n\u003cp\u003e-Anodized Surface will last much longer than stock\u003c\/p\u003e\n\u003cp\u003e-Fits all Yamaha carb and efi yfz450s\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":41929478340798,"sku":"","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/hinson.jpg?v=1660253148"},{"product_id":"2014-2023-yamaha-yfz450r-xc2-ex-cam","title":"Yamaha YFZ450R XC2 Ex Cam 14-2025","description":"\u003cp\u003e-Better power curve from bottom to top of curver\u003c\/p\u003e\n\u003cp\u003e-More lift than the standard exhaust cam\u003c\/p\u003e\n\u003cp\u003e-Tested and used for years\u003c\/p\u003e\n\u003cp\u003e-Yes this is the older ex cam that we weld and degree\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":42161073324222,"sku":"","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/products\/EXCAM.jpg?v=1664460002"},{"product_id":"yfz450r-top-end-rebuild","title":"Yfz450R top end rebuild","description":"\u003cp\u003eThis is full top end rebuild kit. 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RRP Throttle \/ with out adapters \/ OEM SPRING","offer_id":48798198268094,"sku":null,"price":749.99,"currency_code":"USD","in_stock":true},{"title":"Honda \/ Suzuki \/ RRP Throttle \/ with out adapters \/ BNR Softer Throttle spring","offer_id":48798200889534,"sku":null,"price":749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/IMG-2932.heic?v=1731268395"},{"product_id":"used-rekluse-z-start","title":"USED Rekluse Z Start","description":"\u003cp\u003eUsed recluse Z Start Pro Yfz450r\u003c\/p\u003e\n\u003cp\u003eincludes everything you need besides fibers and the clutch basket itself\u003c\/p\u003e\n\u003cp\u003esold as is\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":44711082754238,"sku":"","price":489.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/PhotoNov232024_15831PM.jpg?v=1732388644"},{"product_id":"used-yfz450r-starter","title":"USED Yfz450r Starter","description":"\u003cp\u003eUsed Yfz450r Starter\u003c\/p\u003e\n\u003cp\u003eOem\u003c\/p\u003e\n\u003cp\u003eworks as it should\u003c\/p\u003e\n\u003cp\u003esold as is\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":44743909376190,"sku":"","price":89.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/PhotoDec112024_42358PM.jpg?v=1733952884"},{"product_id":"ktm-250-450-softer-throttle-body-spring","title":"KTM Throttle Body Return Spring – 42\/44mm","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch3 data-start=\"59\" data-end=\"100\"\u003e\u003cstrong data-start=\"63\" data-end=\"98\"\u003eKTM Throttle Body Return Spring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"102\" data-end=\"355\"\u003e\n\u003cli data-start=\"102\" data-end=\"167\"\u003e\n\u003cp data-start=\"104\" data-end=\"167\"\u003e\u003cstrong data-start=\"104\" data-end=\"126\"\u003eDirect replacement\u003c\/strong\u003e for the stock KTM throttle body spring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"168\" data-end=\"238\"\u003e\n\u003cp data-start=\"170\" data-end=\"238\"\u003eProvides \u003cstrong data-start=\"179\" data-end=\"198\"\u003e40% less effort\u003c\/strong\u003e for smoother, easier throttle control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"239\" data-end=\"303\"\u003e\n\u003cp data-start=\"241\" data-end=\"303\"\u003eInstalls inside the throttle body in place of the OEM spring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"304\" data-end=\"355\"\u003e\n\u003cp data-start=\"306\" data-end=\"355\"\u003eCompatible with \u003cstrong data-start=\"322\" data-end=\"353\"\u003e42mm \/ 44mm throttle bodies\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":45327530164414,"sku":null,"price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/s-l1600_5.webp?v=1755720295"},{"product_id":"bnr-pro-plus-exhaust-cam-yfz450r","title":"BNR Pro Plus Exhaust Cam YFZ450R","description":"\u003cp\u003e-Custom made for us by Dasa\u003cbr\u003e-Welded gear\u003cbr\u003e-High horsepower cam\u003cbr\u003e-This cam is and upgrade over our other cam but mainly only in heavily built race motors with plus 1 valves for just a drop in upgrade the XC2 cam is more than sufficient\u003c\/p\u003e\n\u003cp\u003e-Full Billett Camshaft\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":45571349905598,"sku":null,"price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/IMG_1004.jpg?v=1762541760"},{"product_id":"bnr-pro-plus-billet-cam-set","title":"BNR Pro Plus Billet Cam Set For Yfz450r","description":"\u003cp\u003e-Custom made for us by Dasa\u003cbr\u003e-Welded gear\u003cbr\u003e-High horsepower cam\u003cbr\u003e-This cam is and upgrade over our other cam but mainly only in heavily built race motors with plus 1 valves for just a drop in upgrade the XC2 cam is more than sufficient\u003c\/p\u003e\n\u003cp\u003e-Full Billet Camshaft set\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Default Title","offer_id":45571366650046,"sku":null,"price":1049.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/IMG_1003.jpg?v=1762542736"},{"product_id":"yamaha-yfz450r-debore-400cc","title":"YAMAHA YFZ450R DeBore","description":"\u003ch1\u003eYamaha YFZ450R 400cc De-Bore Conversion Kits \u0026amp; Components\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eBNR Motorsports 400cc De-Bore Conversion Series\u003c\/strong\u003e is designed for riders looking to build a competitive and reliable 400cc Yamaha YFZ450R. Whether you're purchasing a complete conversion kit or replacement components, every part is engineered to work together for maximum performance.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSerialized Cylinder Identification\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eEvery BNR Motorsports 400cc de-bore cylinder is permanently engraved with a unique serial number for quality control and product traceability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAll Yamaha YFZ450R 400cc de-bore engines require a Vortex ECU programmed specifically for the 400cc conversion.\u003c\/strong\u003e The factory ECU cannot properly operate a de-bore engine because the fuel and ignition requirements are significantly different from a stock 450cc engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIf you already own a Vortex ECU, you can send it to BNR Motorsports to be reflashed for your 400cc engine combination.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIf you do not own a Vortex ECU, select the \u003cstrong\u003eKit with Vortex ECU\u003c\/strong\u003e option and we'll supply a new ECU that is custom programmed for your build.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen ordering a Vortex ECU or ECU reflash, please provide your complete engine specifications, including camshaft, exhaust system, intake modifications, and any other performance upgrades. This allows us to create a calibration specifically for your ATV.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvailable Options\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eComplete 400cc De-Bore Kit\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIncludes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:c770b219-68b3-48e1-844a-1e36bc760abb-2\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-6\" data-turn-id-container=\"request-WEB:c770b219-68b3-48e1-844a-1e36bc760abb-2\" data-turn-id=\"request-WEB:c770b219-68b3-48e1-844a-1e36bc760abb-2\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"83c328ce-57fb-4193-be34-0f60ea773aea\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"225\" data-start=\"0\"\u003e\n\u003cli data-end=\"39\" data-start=\"0\" data-section-id=\"26xic\"\u003ePrecision-machined \u003cstrong data-end=\"39\" data-start=\"21\"\u003e400cc cylinder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"125\" data-start=\"40\" data-section-id=\"f4na3p\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"76\" data-start=\"42\"\u003eBNR Wiseco 400cc forged piston\u003c\/strong\u003e (includes Wiseco rings, wrist pin, and circlips)\u003c\/li\u003e\n\u003cli data-is-last-node=\"\" data-end=\"225\" data-start=\"126\" data-section-id=\"1yxkwbj\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"157\" data-start=\"128\"\u003e400cc de-bore head gasket\u003c\/strong\u003e designed specifically for the 400cc cylinder and piston combination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eNote:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e A Vortex ECU is required for all 400cc de-bore conversions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eComplete 400cc De-Bore Kit with Vortex ECU\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIncludes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli data-end=\"39\" data-start=\"0\" data-section-id=\"26xic\"\u003ePrecision-machined \u003cstrong data-end=\"39\" data-start=\"21\"\u003e400cc cylinder\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"125\" data-start=\"40\" data-section-id=\"f4na3p\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"76\" data-start=\"42\"\u003eBNR Wiseco 400cc forged piston\u003c\/strong\u003e (includes Wiseco rings, wrist pin, and circlips)\u003c\/li\u003e\n\u003cli data-end=\"157\" data-start=\"126\" data-section-id=\"1udotu5\"\u003e\u003cstrong data-is-only-node=\"\" data-end=\"157\" data-start=\"128\"\u003e400cc de-bore head gasket\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-is-last-node=\"\" data-end=\"265\" data-start=\"158\" data-section-id=\"c6snfm\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"178\" data-start=\"160\"\u003eNew Vortex ECU\u003c\/strong\u003e professionally programmed by BNR Motorsports specifically for the 400cc de-bore engine\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEach Vortex ECU is custom flashed to match your ATV's engine combination and performance modifications, providing optimized fuel and ignition mapping for maximum power, crisp throttle response, and long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e400cc De-Bore Head Gasket\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReplacement head gasket designed specifically for BNR Motorsports 400cc de-bore engine builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e400cc De-Bore Piston\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eReplacement piston for BNR Motorsports 400cc de-bore engine builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eContact \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCall:\u003c\/strong\u003e (330) 549-9799\u003cbr\u003e\u003cstrong\u003eText:\u003c\/strong\u003e (330) 774-1123\u003cbr\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:bnrmotorsports@hotmail.com\"\u003ebnrmotorsports@hotmail.com\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"BNR Motorsports","offers":[{"title":"Complete 400cc De-Bore Kit","offer_id":48103070597310,"sku":null,"price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Complete 400cc De-Bore Kit with New Vortex ECU","offer_id":48103226081470,"sku":null,"price":2494.99,"currency_code":"USD","in_stock":true},{"title":"400cc De-Bore Head Gasket","offer_id":48103226114238,"sku":null,"price":69.95,"currency_code":"USD","in_stock":true},{"title":"400cc De-Bore Piston","offer_id":48103226147006,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/IMG-0355.heic?v=1783620807"},{"product_id":"bnr-custom-14-1-piston","title":"Yamaha YFZ450R YFZ450 YFZR WF PISTON","description":"\u003cul\u003e\n\u003cli class=\"productFeature\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) pb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex min-h-0 grow flex-col text-sm\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 [\u0026amp;\u0026gt;div:has([data-free-thinking-preview-answer=true])+:is(.text-message,.relative:has(\u0026gt;.text-message))]:-mt-2 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"LR5Y_W_content markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch3 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eYamaha YFZ450R \/ YFZ450 14:1 High-Compression Piston Kit\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eHigh-compression \u003cstrong\u003e14:1 piston kit\u003c\/strong\u003e designed for Yamaha YFZ450R and YFZ450 performance builds. Built with reliability in mind, this setup uses \u003cstrong\u003eOEM Yamaha piston rings\u003c\/strong\u003e while providing increased compression for race and performance applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e14:1 compression piston\u003c\/li\u003e\n\u003cli\u003eOEM Yamaha piston rings\u003c\/li\u003e\n\u003cli\u003eWrist pin\u003c\/li\u003e\n\u003cli\u003eCirclips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e14:1 compression ratio\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eUses OEM Yamaha rings for proven reliability and serviceability\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e100-octane or higher fuel required\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for high-performance and race applications\u003c\/li\u003e\n\u003cli\u003eComplete piston setup ready for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll EFI Yamaha YFZ450R models\u003c\/li\u003e\n\u003cli\u003eCarbureted Yamaha YFZ450 models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFuel Requirement:\u003c\/strong\u003e Minimum \u003cstrong\u003e100-octane fuel\u003c\/strong\u003e with this piston setup\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"invisible mt-auto grid\"\u003e\n\u003cdiv class=\"visible sticky bottom-(--scroll-root-safe-area-inset-bottom,0px) col-start-1 row-start-1 self-end\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"min-h-9 pt-2 text-center text-xs text-token-text-tertiary [view-transition-name:var(--vt-disclaimer)] pb-4 relative overflow-hidden @w-sm\/main:px-[60px]\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BNR Motorsports","offers":[{"title":"Standard Wrist Pin","offer_id":49130801791166,"sku":null,"price":299.99,"currency_code":"USD","in_stock":true},{"title":"DLC-Coated Wrist Pin","offer_id":49130801823934,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/files\/pistongt_med_1b330e2a-cab4-4b13-86d6-0ea6c1bafa95.jpg?v=1785960652"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/8890\/1446\/collections\/engineyfz450.jpg?v=1598532201","url":"https:\/\/bnr-motorsports.myshopify.com\/collections\/yfz450-r-x-engine.oembed?page=2","provider":"BNR Motorsports","version":"1.0","type":"link"}