{"product_id":"ciloyu-mini-bike-jackshaft-kit-for-ct200u-17mm-shaft-10t-20t-420-sprockets-with-sealed-6203rs-bearings","title":"CILOYU mini bike jackshaft kit for CT200U — 17mm shaft, 10T \u0026 20T 420 sprockets with sealed 6203RS bearings","description":"\u003cp\u003e\u003cstrong\u003eCILOYU's mini bike jackshaft shaft kit is a complete replacement assembly that supplies a hardened 17 mm jackshaft, 420-chain sprockets (10T and 20T), and sealed 6203RS bearings for smoother, longer-lasting chain drive on CT200U-style minibikes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Coleman CT200U or a compatible mini bike is showing chain slop, noisy transmission, or rapid sprocket wear, this kit gives you the core hardware to rebuild the jackshaft quickly and reliably. Built from premium steel components and supplied with sealed bearings and all mounting hardware, the assembly is designed to restore correct chain alignment and reduce drivetrain wear without the need to source several separate parts.\u003c\/p\u003e\n\n\u003ch3\u003eWill this jackshaft kit fit my CT200U or similar minibike?\u003c\/h3\u003e\n\u003cp\u003eThe kit is engineered for Coleman CT200U models and many popular clones and variants. Check the jackshaft diameter and thread size on your bike before ordering—this kit uses a 17 mm shaft and matching sprockets, not a 5\/8\" (15.87 mm) sprocket.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fit: Coleman CT200U, CT200U-EX, CT200U-EXR\u003c\/li\u003e\n  \u003cli\u003eCompatible models: BT200X (all), RB200, Baja MB200, MB165, Axis M200\u003c\/li\u003e\n  \u003cli\u003eAlso fits: Realtree RT200 and Massimo MB200-style frames\u003c\/li\u003e\n  \u003cli\u003eImportant: uses 17 mm jackshaft diameter; not compatible with 5\/8\" sprockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit improve drivetrain performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn sprockets and bearings stops chain stretch from causing slippage and reduces vibration that accelerates wear. The sealed 6203RS bearings keep contaminants out, maintaining smoother rotation under load and extending component life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes sealed 6203RS bearings for dust and moisture resistance\u003c\/li\u003e\n  \u003cli\u003eTwo sprockets (10T and 20T) let you tune gear engagement or replace worn teeth\u003c\/li\u003e\n  \u003cli\u003ePremium steel shaft and sprockets resist deformation and wear\u003c\/li\u003e\n  \u003cli\u003eSpacer, keyway and nut included for proper alignment and secure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and what should I prepare for installation?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the jackshaft assembly and all essential small parts so you won’t need to hunt for specialty hardware. Have basic hand tools ready plus thread locker if you prefer a secure fastening method.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x jackshaft sprocket shaft (17 mm diameter)\u003c\/li\u003e\n  \u003cli\u003e2 x sealed 6203RS bearings, 1 x spacer, 1 x keyway, 1 x nut\u003c\/li\u003e\n  \u003cli\u003e1 x 420 chain jackshaft sprocket 10T and 1 x 420 chain jackshaft sprocket 20T\u003c\/li\u003e\n  \u003cli\u003eRecommended tools: sockets\/wrenches, bearing press or puller, torque wrench, thread locker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders, mechanics, and hobbyists who own a CT200U or a similar small-displacement minibike and want a reliable, value-packed jackshaft replacement. It’s ideal for people restoring older bikes, correcting chain alignment, or swapping sprockets for different final drive ratios. If your bike requires a 17 mm jackshaft and 420 chain components, this CILOYU kit supplies the essential parts to get the drivetrain back to dependable operation.\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 jackshaft kit compatible with 5\/8\" sprockets?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This kit uses a 17 mm jackshaft and includes 17 mm-compatible 420 sprockets, not 5\/8\" (15.87 mm) sprockets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the bearings in the kit sealed for weather resistance?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes sealed 6203RS bearings designed to keep out dirt and moisture for longer life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CILOYU","offers":[{"title":"Default Title","offer_id":48086131736734,"sku":"B0FB7ZN7DJ","price":43.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ciloyu-jackshaft-front-assembly.jpg?v=1785886070","url":"https:\/\/northtrailauto.ca\/products\/ciloyu-mini-bike-jackshaft-kit-for-ct200u-17mm-shaft-10t-20t-420-sprockets-with-sealed-6203rs-bearings","provider":"North Trail Auto","version":"1.0","type":"link"}