{"product_id":"ciloyu-420-sprocket-40t-40mm-bore-replacement-for-coleman-bt200x-ct200u-ct200u-ex-mini-bikes","title":"CILOYU 420 Sprocket 40T 40mm Bore Replacement for Coleman BT200X CT200U CT200U-EX Mini Bikes","description":"\u003ch2\u003eUpgrade your mini bike with the CILOYU 420 Sprocket 40T\u003c\/h2\u003e\n\u003cp\u003eRefresh a worn or undersized drive gear with a purpose-built 420-chain compatible sprocket that uses a 40 mm bore and a 40-tooth geometry. The CILOYU 420 Sprocket 40T delivers a solid, dependable feel in everyday riding while preserving smooth power transmission across varied surfaces. This part is a practical option for riders who want steadier take-offs and a confident gear engagement on a range of small bikes and go-karts, from Coleman BT200X to Predator-powered setups.\u003c\/p\u003e\n\n\u003ch3\u003eFitment and compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 420-chain systems and 40T gearing to refresh the drive train on compatible builds.\u003c\/li\u003e\n\u003cli\u003eWidely compatible with Coleman BT200X, CT200U-EX, CT200U, CT100U, and related mini bike models.\u003c\/li\u003e\n\u003cli\u003eAlso suitable for Baja MB165\/MB200, Hensim MB165\/MB200, MASSIMO MB200, TrailMaster MB200, and Axis M200 platforms.\u003c\/li\u003e\n\u003cli\u003eWorks with Baja Doodlebug DB30, Motovox MBX10\/MBX11, Monster Moto MM-B80\/MM-B105, and other 420-chain machines.\u003c\/li\u003e\n\u003cli\u003eCompatible with Predator 212cc engines and similar small-displacement setups that use a 420 chain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and installation notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 420 chain 40T sprocket designed for 420-chain systems\u003c\/li\u003e\n\u003cli\u003e5 x master links\u003c\/li\u003e\n\u003cli\u003e10 x screws\u003c\/li\u003e\n\u003cli\u003e10 x nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe mounting pattern offers flexibility: the center-to-center distance for the six-hole configuration is about 49 mm (1.93 inches), while the four outer holes use an 80 mm (3.15 inches) bolt circle. This arrangement supports installing the sprocket on many mini bikes, including CT200U and BT200X models, while the six inner holes provide broader compatibility with other engines and frames.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance and durability notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe larger 40T design provides more drive surface, which can translate to stronger acceleration and better climbing power across mixed terrain.\u003c\/li\u003e\n\u003cli\u003ePrecision-cut teeth help improve engagement with the chain, potentially reducing wear and promoting consistent power delivery.\u003c\/li\u003e\n\u003cli\u003eThe combination of a bigger sprocket and robust bore is built for regular use in off-road or variable-terrain rides, with maintenance in mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf you’re upgrading a mini bike for weekend adventures, this replacement sprocket offers a practical path to refreshed performance. Individual results can vary based on model, engine condition, and riding styles, so consider this part as a meaningful possibility rather than a guaranteed outcome.\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: What models is the CILOYU 420 Sprocket 40T compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with Coleman CT200U, BT200X, CT200U-EX, Predator 212, Baja MB165\/MB200 and other 420-chain mini bikes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What’s included in the packaging?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A 40T sprocket for 420 chain, five master links, ten screws, and ten nuts for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CILOYU","offers":[{"title":"Default Title","offer_id":42469285199957,"sku":"B0FBRP5SHJ","price":37.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ciloyu-420-sprocket-40t-40mm-bore.jpg?v=1778089415","url":"https:\/\/plentytorque.co.uk\/products\/ciloyu-420-sprocket-40t-40mm-bore-replacement-for-coleman-bt200x-ct200u-ct200u-ex-mini-bikes","provider":"PlentyTorque","version":"1.0","type":"link"}