{"product_id":"ciloyu-40-tooth-sprocket-420-chain-40mm-bore-for-ct200u","title":"CILOYU 40 Tooth Sprocket 420 Chain 40mm Bore for CT200U","description":"\u003cp\u003e\u003cstrong\u003eCILOYU's 40-tooth 420 sprocket is a direct-fit replacement designed for mini bikes and go-karts with a 40mm center bore, offering improved torque and durable power transfer for Predator, Coleman, Baja and similar engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis sprocket kit is engineered to match a wide range of 420-chain mini bike drivetrains, with two common mounting bolt patterns and extra mounting holes to fit more models without modification. It ships as a complete kit — sprocket, master links and hardware — so you can replace a worn part quickly and get back on the trail or track. The larger tooth count and precision-machined teeth are intended to deliver smoother chain engagement and longer chain life under load.\u003c\/p\u003e\n\n\u003ch3\u003eWill this sprocket fit my mini bike or go-kart?\u003c\/h3\u003e\n\u003cp\u003eThe sprocket supports 420 chain systems and features a 40mm center bore. It includes two mounting bolt-circle options (49 mm and 80 mm) and extra mounting holes to cover multiple models, increasing compatibility across popular mini-bike brands.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCenter bore: 1.57\" (40 mm)\u003c\/li\u003e\n  \u003cli\u003e6-hole bolt circle: 1.93\" (49 mm)\u003c\/li\u003e\n  \u003cli\u003e4-hole bolt circle: 3.15\" (80 mm)\u003c\/li\u003e\n  \u003cli\u003eDesigned for Predator, Coleman, Baja, Hensim, Massimo and similar mini-bike engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the 40-tooth sprocket affect performance on trails and hills?\u003c\/h3\u003e\n\u003cp\u003eWith 40 teeth the sprocket increases torque and climbing ability compared with smaller sprockets while keeping chain speed manageable. The larger diameter raises mechanical advantage for acceleration and hill climbing without drastic changes to top speed in most setups.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMore teeth = improved low-end torque for hills\u003c\/li\u003e\n  \u003cli\u003ePrecision teeth reduce slippage and vibration\u003c\/li\u003e\n  \u003cli\u003eFatigue-resistant design helps extend chain life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and how easy is installation?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the sprocket plus hardware needed to install it on compatible mini bikes. Included mounting bolts, nuts and master links let you swap the sprocket quickly; basic hand tools and standard mechanical skills are all that’s required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: 1 x 40T 420 sprocket, 5 x 420 master links\u003c\/li\u003e\n  \u003cli\u003eAlso includes: 10 screws and 10 nuts for mounting flexibility\u003c\/li\u003e\n  \u003cli\u003eInstallation: remove old sprocket, align chosen bolt pattern, secure with supplied hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich models are known to be compatible with this sprocket?\u003c\/h3\u003e\n\u003cp\u003eThis sprocket is made to fit many popular mini bikes and go-karts that use 420 chain; the extra holes allow fitting both smaller- and larger-bore crank hubs. Check your mounting bolt circle and center-bore dimensions before ordering to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with: Coleman CT200U, BT200X, CT100U, CC100X\u003c\/li\u003e\n  \u003cli\u003eCompatible with: Predator 212cc\/196cc\/200cc engines, Hensim and Baja mini-bike models\u003c\/li\u003e\n  \u003cli\u003eAlso fits: TrailMaster, Massimo, Motovox, Monster Moto and similar 420-chain machines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This CILOYU 40T 420 sprocket suits riders and mechanics who need a reliable replacement or upgrade for mini bikes and compact go-karts using 420 chain. It’s aimed at owners of Predator-powered machines and mainstream mini-bike brands who want stronger acceleration and lower chain wear, plus DIYers who prefer a kit that includes all mounting hardware.\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: Is this sprocket compatible with a Predator 212 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it supports 420 chains used on many Predator 212\/196\/200 engines, provided your bike’s center bore and bolt circle match the sprocket dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes the 40T sprocket, five 420 master links, ten screws and ten nuts for mounting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CILOYU","offers":[{"title":"Default Title","offer_id":48087473488030,"sku":"B0FBRKMSH2","price":36.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ciloyu-front-view-sprocket.jpg?v=1785924519","url":"https:\/\/northtrailauto.ca\/products\/ciloyu-40-tooth-sprocket-420-chain-40mm-bore-for-ct200u","provider":"North Trail Auto","version":"1.0","type":"link"}