{"product_id":"yoxufa-48-tooth-420-chain-sprocket-hub-for-predator-212-196cc-1-bore-1-4-keyway-steel-replacement","title":"YOXUFA 48-Tooth 420 Chain Sprocket Hub for Predator 212\/196cc – 1\" Bore, 1\/4\" Keyway, Steel Replacement","description":"\u003cp\u003e\u003cstrong\u003eYOXUFA 48-tooth 420 sprocket hub is a heavy-duty replacement designed to fit 1\" bore axles with a 1\/4\" keyway for Predator 212cc and 196cc mini bikes, go-karts and similar powersports machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt from solid steel, this assembled sprocket hub combines a 48-tooth #420 sprocket with a four-inch outer-diameter hub engineered for common small-engine drivetrains. The unit ships with a key, bolts and nuts for a straightforward swap and includes dimensional specs so you can confirm fitment before purchase. It’s intended as a direct replacement for many 6.5hp Predator-style engine applications and other 196cc–212cc platforms that use a 420 chain.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I confirm this sprocket will fit my go-kart or mini bike?\u003c\/h3\u003e\n\u003cp\u003eMeasure three critical points: the axle bore, the bolt circle diameter (BCD), and the sprocket center hole. This YOXUFA hub has a 1\" bore, 54mm center hole, and a bolt circle of 90mm (3.54\"). If your engine and chassis match those numbers, the part should mount without modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAxle bore: 1\" (25.4mm)\u003c\/li\u003e\n  \u003cli\u003eKey\/keyway size: 1\/4\"\u003c\/li\u003e\n  \u003cli\u003eCenter hole diameter: 54mm (2.13\")\u003c\/li\u003e\n  \u003cli\u003eBolt circle (center-to-center): 90mm (3.54\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the material and build details I should expect?\u003c\/h3\u003e\n\u003cp\u003eThe sprocket and hub are manufactured from steel for strength and durability under regular recreational loads. Teeth are cut to suit #420 chain compatibility, and the assembly uses eight mounting holes and supplied fasteners to secure the sprocket to the hub.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSprocket: #420 chain, 48 teeth, overall diameter 197mm (7.76\")\u003c\/li\u003e\n  \u003cli\u003eHub outer diameter: 4\"; thickness: 6mm (0.236\")\u003c\/li\u003e\n  \u003cli\u003eMounting holes: 8 × 10mm (0.39\") diameter\u003c\/li\u003e\n  \u003cli\u003eIncluded hardware: keyway, 4 screws, 4 nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eInstallation is a routine mechanical job if your measurements match. You'll remove the old sprocket or pulley, slide the hub onto the axle, position the key in the keyway, and tighten the supplied fasteners to the hub’s bolt pattern. Use standard hand tools and basic torque checks to ensure a secure fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical tools: socket set, torque wrench, breaker bar, pliers\u003c\/li\u003e\n  \u003cli\u003eProcedure: remove old part → align keyway → mount hub → torque bolts\u003c\/li\u003e\n  \u003cli\u003eRecommended: verify chain alignment and tension after install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check for maintenance and safe use?\u003c\/h3\u003e\n\u003cp\u003eRegularly inspect the teeth for wear, confirm fasteners remain tight, and keep the chain lubricated to prolong life. Replace the sprocket if teeth become hooked or excessively thin to prevent premature chain failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect teeth and mounting bolts every few rides\u003c\/li\u003e\n  \u003cli\u003eKeep #420 chain properly tensioned and lubricated\u003c\/li\u003e\n  \u003cli\u003eReplace if gear teeth are deformed or mounting holes elongate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This YOXUFA 48T 420 sprocket hub is intended for DIY mechanics, kart builders, and powersports hobbyists running Predator-style 196cc or 212cc small engines or any application that requires a 420 chain with a 1\" bore and 1\/4\" keyway. If you need a durable steel replacement that arrives with the key and mounting hardware, this kit simplifies the swap and gets you back on track quickly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this hub fit a Predator 212cc engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes if your engine uses a 1\" bore axle, 1\/4\" keyway, and a 90mm bolt circle; verify center hole and bolt pattern first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which chain size does this sprocket accept?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This sprocket is cut for #420 chain and features 48 teeth for compatible drive setups.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YOXUFA","offers":[{"title":"Default Title","offer_id":48083816513694,"sku":"B0B7M6QC76","price":58.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yoxufa-sprocket-front-view.jpg?v=1785836665","url":"https:\/\/northtrailauto.ca\/products\/yoxufa-48-tooth-420-chain-sprocket-hub-for-predator-212-196cc-1-bore-1-4-keyway-steel-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}