{"product_id":"yoxufa-40t-40-41-420-chain-sprocket-40mm-bore-4-bolt-mount-for-coleman-bt200x-ct200u-and-more","title":"YOXUFA 40T 40\/41\/420 Chain Sprocket, 40mm Bore — 4-Bolt Mount for Coleman BT200X CT200U and More","description":"\u003ch2\u003eUpgrade your mini bike drive with the YOXUFA 40T sprocket\u003c\/h2\u003e\n\u003cp\u003eThis 40-tooth rear sprocket is designed to align with 420 chain systems, delivering a reliable and responsive upgrade for select mini bikes and go-karts. The part features a precise 40 mm center bore and an 80 mm bolt-circle pattern, enabling a secure fit on compatible hubs while maintaining a compact, tidy drive footprint. Built with durability in mind, it’s engineered to withstand everyday riding and occasional rough terrain, so you can enjoy consistent chain engagement across miles of dirt and pavement.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and mounting\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Coleman BT200X, CT200U, CT200U-EX, CT200U-EXR, Baja Warrior, TrailMaster MB200, Massimo MB200, Axis M200, and Coleman KT196 go-karts that use a 4-bolt, 80 mm pattern.\u003c\/li\u003e\n  \u003cli\u003eNote: This sprocket uses a 4-bolt mounting pattern, not a 3-hole setup. Please verify your hub pattern before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat you get and how it helps\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePotential top-speed boost relative to a higher-tooth original, with the 40-tooth design optimized for 420 chain systems.\u003c\/li\u003e\n  \u003cli\u003eLower cruising RPM can reduce engine load and vibration, which may contribute to a smoother ride on longer sessions.\u003c\/li\u003e\n  \u003cli\u003eDurable construction together with a precise pitch match helps maintain consistent chain engagement and reduces the risk of the chain coming off during use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey specs at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTeeth: 40; Chain compatibility: 420; Overall diameter: 6.5 inches; Center bore: 40 mm; Bolt-circle diameter: 80 mm.\u003c\/li\u003e\n  \u003cli\u003eNote: Not compatible with #35 chain or non-420 configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReal-world use: On weekend trail runs, on-track sessions, or backyard projects, this sprocket aims to deliver a dependable upgrade path. It’s designed to pair with existing 420 chains and a 4-bolt hub, making installation straightforward for those upgrading worn components. While individual results vary, riders may notice crisper engagement, a steadier pull in top gear, and a quieter, more controlled feel during sustained cruising.\u003c\/p\u003e\n\u003ch3\u003eInstallation and maintenance tips\u003c\/h3\u003e\n\u003cp\u003eBefore buying, confirm your rear sprocket’s mounting pattern and chain type. Once installed, check alignment and chain tension at regular intervals to preserve performance and safety. Use appropriate fasteners and torque settings recommended for your hub to ensure a solid, lasting fit.\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: Which models is this sprocket compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with Coleman BT200X, CT200U, CT200U-EX, CT200U-EXR, Baja Warrior, TrailMaster MB200, Massimo MB200, Axis M200, and Coleman KT196 go-karts with a 4-bolt pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What installation notes and performance should I expect?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Requires a 4-bolt 80 mm bolt circle and 40 mm center bore; a 40-tooth design can raise top speed potential and may lower cruising RPM, depending on setup.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YOXUFA","offers":[{"title":"Default Title","offer_id":42467649749077,"sku":"B0CHW3DGMS","price":31.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/yoxufa-40-tooth-420-chain-sprocket-80mm-bolt-circle.jpg?v=1778060085","url":"https:\/\/plentytorque.co.uk\/products\/yoxufa-40t-40-41-420-chain-sprocket-40mm-bore-4-bolt-mount-for-coleman-bt200x-ct200u-and-more","provider":"PlentyTorque","version":"1.0","type":"link"}