CILOYU Mini Bike 420 Chain Kit Red — 42 & 90 Links, 10T Sprocket and Installation Tools

The CILOYU Red 420 chain kit is a complete replacement drive system for mini bikes and go-karts, including a 42-link inner, 90-link outer chain option, 10-tooth drive sprocket, chain breaker, master link and tensioner for straightforward installation and durable performance.

If you need a reliable, heavy-duty replacement chain for Predator 212/196cc engines or popular mini bike models, this CILOYU kit brings corrosion-resistant alloy-steel construction plus the tools required to size and fit the system correctly. The kit is tailored for common powersports mini bikes and go-karts — Coleman CT200U, Baja and Hensim MB165/MB200 lines, Massimo and TrailMaster models — and is designed to withstand regular recreational use while simplifying maintenance and repairs.

Will this chain fit my mini bike or go-kart?

This 420-standard chain and included 10-tooth drive sprocket are compatible with many small-engine mini bikes and go-karts that accept 420 or similar chains. Check the engine output shaft and rear sprocket spacing on your model to confirm alignment and correct tooth count.

• Compatible models: Coleman CT200U, CT200U-EX, BT200X
• Baja Motorsports: MB165, MB200 series
• Hensim MB165/MB200, MASSIMO MB200, TrailMaster MB200
• Fits engines: Predator 212cc, 196cc and typical 6.5hp small engines

How durable is the CILOYU alloy-steel chain?

The chain is manufactured from alloy steel with a wear-resistant surface finish to extend service life and resist corrosion from outdoor use. Solid link construction and a secure master link reduce the risk of breakage under normal riding conditions when installed and tensioned properly.

• Alloy-steel construction for strength and longevity
• Wear-resistant surface treatment to slow abrasion
• Corrosion resistance suitable for outdoor recreation
• Firm link connections designed to reduce failure risk

What tools and parts are included to make installation easier?

Alongside the chain and sprocket, the kit supplies a chain breaker, a master link for assembly, and a chain tensioner to help set correct tension and keep the chain aligned. These additions let you shorten or lengthen the chain and adjust tension without sourcing extra parts.

• Chain breaker for splitting and rejoining links
• Spare master link for secure assembly
• Adjustable chain tensioner to prevent slippage or drop-off
• 10-tooth drive sprocket sized for 40/41/420 chains

What should I watch for after installation?

Proper alignment between the engine sprocket and the rear sprocket is critical — misalignment dramatically increases wear and the chance of chain damage. After installing and tensioning, inspect chain line, recheck fasteners, and test under low load before full-speed use.

• Ensure sprockets and chain are in a straight line
• Set correct tension with the provided tensioner; avoid overtightening
• Re-check alignment and fasteners after a short test ride
• Lubricate as recommended for longevity

Who is this for: The CILOYU Red 420 chain kit is aimed at DIY mechanics, mini bike and go-kart owners, and powersports hobbyists who need a robust replacement or upgrade for common small-engine drivetrains. If you run a Predator 212/196cc-powered bike, Baja or Hensim mini bike, or similar models and want a ready-to-install kit with tools to fit and maintain the chain, this package provides the parts and hardware to get you back on the trail quickly.