{"product_id":"razor-sprocket-freewheel-mx500-mx650-rsf350-sx500","title":"Razor Sprocket \u0026 Freewheel MX500\/MX650\/RSF350\/SX500","description":"\u003ch2\u003eSprocket and Freewheel Assembly for Razor MX500, MX650, RSF350, and SX500\u003c\/h2\u003e\u003cp\u003eThis sprocket and freewheel assembly is made to bring back smooth performance on your electric dirt bike. It works as a dependable swap-in for rear drive parts that are worn or no longer working properly. It engages well when you accelerate and lets the wheel coast freely once you let off the throttle, which makes a noticeable difference in how the bike rides. It is one of the \u003ca href=\"\/collections\/razor-scooter-parts\"\u003eRazor scooter parts\u003c\/a\u003e you can rely on to keep things running well under tough use.\u003c\/p\u003e\u003ch3\u003eBuild and Structure\u003c\/h3\u003e\u003cp\u003eThe assembly is made up of three main pieces: the drive sprocket, a tough freewheel mechanism, and a guard that helps keep the chain on track and out of debris. Together these parts support smoother operation and a longer service life. The steel construction is intended to handle the demands of 500W and 650W motors and to hold up against wear over time.\u003c\/p\u003e\u003ch3\u003eSetup and Compatibility\u003c\/h3\u003e\u003cp\u003eThis assembly uses a standard M34 x 1.00 thread pitch and threads onto the factory rear wheel hub with a simple spin-on fit. If the motor runs but the rear wheel stays still, the internal freewheel may have failed. Removing the old unit may require a dedicated removal tool, or a hammer and punch. Putting anti-seize on the threads will make future changes easier.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain Size:\u003c\/strong\u003e #25H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch:\u003c\/strong\u003e M34 x 1.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 7 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e W15165070142, W15128199013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Razor MX500\/MX650 (MX500 V22+, MX650 V15+), SX500\/McGrath versions 1 and up, RSF350 Electric Sport Bike\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRazor MX500 (V22+)\u003c\/li\u003e\n\u003cli\u003eRazor MX650 (V15+)\u003c\/li\u003e\n\u003cli\u003eRazor SX500 \/ McGrath (versions 1 and up)\u003c\/li\u003e\n\u003cli\u003eRazor RSF350 (Electric Sport Bike, standard fitment)\u003c\/li\u003e\n\u003cli\u003eRazor MX350 \/ MX400 (select mid-frame versions)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare your scooter's version with the list above, and confirm your chain is #25H, the sprocket is 7 inches, and the thread is M34 x 1.00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/razor-scooter-parts\"\u003eRazor Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-chains-sprockets\"\u003eScooter Chains \u0026amp; Sprockets\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51135738576953,"sku":"TT-16403","price":37.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/razor-sprocket-freewheel-mx500-mx650-rsf350-sx500-1.jpg?v=1794349657","url":"https:\/\/www.trendtimes.com\/products\/razor-sprocket-freewheel-mx500-mx650-rsf350-sx500","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}