YOXUFA 420 Mini Bike Chain Kit — 42/90-Link for 200–212cc Coleman CT200U with Tensioners & Breaker

YOXUFA 420 Chain Replacement Kit supplies a durable 42-link jackshaft chain and a 90-link rear drive chain plus tools and adjusters to restore smooth, reliable power transmission on mini bikes with 200–212cc engines.

If your mini bike’s drive feels sloppy, slips under load, or the chain shows heavy wear, a matched replacement set can get it back to dependable operation. This kit is built to fit a wide range of popular mini bike models — including Coleman CT200U/CT200U-EX, Predator 212, Baja Warrior, MB200-series and many 196–212cc small engines — and includes the parts needed to install and tension the chains properly.

Which bikes and engines will these 420 chains fit?

These 420-size chains are specified for many mini bikes that use 200–212cc engines and a 420 final drive setup. The listing targets Coleman, Predator, Baja, Massimo, Hensim and similar models that commonly ship with 420 chains from factory or as aftermarket replacements.

• Compatible models: Coleman CT200U, CT200U-EX, BT200X, Baja Warrior, MB165/MB200 series.
• Compatible engines: Predator 212/196cc and comparable 200–212cc 6.5hp small engines.
• Chain size: 420 (jackshaft 42 links, rear drive 90 links).

What comes in the kit and what tools are included?

The kit is packaged to provide both the chains and the basic hardware required for installation and adjustment. That makes it practical for roadside repairs or a workshop replacement without hunting down separate parts.

• One 42-link 420 jackshaft chain and one 90-link 420 rear drive chain.
• Four master links for easy joining and two chain tensioner adjusters for proper alignment.
• One 420 chain breaker tool included to remove old links and size the chain during installation.

How durable and reliable are the chains?

YOXUFA’s chains combine a high-strength base material with a hardened working surface to resist wear and extend service life under normal mini bike use. The manufacturing process emphasizes repeated forging and strict material controls for consistent strength and easier maintenance.

• Hardened surface treatment improves wear resistance against sprockets.
• Reinforced base material helps prevent stretching and premature failure.
• Designed for routine cleaning and disassembly to prolong usable life.

How do the included tensioners and breaker help me install and maintain the chains?

Proper chain tension prevents slippage, reduces wear on sprockets and bearings, and lowers the chance of a chain derailing while riding. The kit’s tensioner adjusters and chain breaker give you the control you need to set the correct slack and secure the chains safely.

• Chain tensioner adjusters enable precise alignment and correct slack settings for smoother operation.
• Chain breaker lets you remove excess links or replace damaged links without special shop tools.
• Master links simplify reassembly and future maintenance checks.

Who is this for? This YOXUFA 420 Chain Replacement Kit is appropriate for mini bike owners, small engine mechanics, and powersports hobbyists who need a complete, vehicle-ready chain replacement for 200–212cc mini bikes. Choose this kit if you want a matched pair of jackshaft and rear drive chains plus the basic tools and adjusters to install them yourself or perform routine maintenance. If you operate a Coleman CT200U family bike, a Predator-powered minibike, or a similar 196–212cc model and need durable, serviceable drive chains, this kit provides the parts and accessories commonly required for a proper repair.