YOXUFA 420 Mini Bike Chain Kit — 90‑Link Rear + 42‑Link Jackshaft (Red), Alloy Steel & Tensioners

YOXUFA's 420 mini bike chain kit supplies a 42-link jackshaft chain and a 90-link rear drive chain, plus tools and tensioners, to replace or upgrade chains on 196–212cc mini bikes.

This complete chain package is designed for mini bike owners who need a durable, properly sized replacement for common compact engines and models. Constructed from high-strength alloy steel with wear-resistant finishing, the kit is intended to withstand routine use and simplify maintenance. It ships with a 90-link rear chain, a 42-link front/jackshaft chain, four master links, a 420 chain breaker, and two tensioner adjusters so you can fit and tune the drive system without hunting for additional parts.

Which mini bikes and engines will these chains fit?

The kit targets widely used small-engine chassis and aftermarket mini bikes. It explicitly lists compatibility with Predator 212/196cc engines and many CT200-style models and clones. If your mini bike uses a standard 420 chain pitch and you measured roughly 90 links for the rear and 42 for the jackshaft, this kit is a likely match.

• Compatible makes: Coleman CT200U, CT200U-EX, BT200X and similar models
• Aftermarket bikes: Baja Motorsports, Massimo, TrailMaster, Hensim variants
• Engines: Predator 212cc and 196cc, 6.5hp small engines
• Chain pitch: standard 420 size for mini bike applications

How durable and reliable are the chains in this kit?

The chains are made from high-strength alloy steel and undergo repeated forging to raise tensile strength and surface wear resistance. While no chain lasts forever, the treated surfaces and heavy-duty construction improve longevity under normal mini bike use and maintenance.

• Material: high-strength alloy steel for increased durability
• Surface: wear-resistant finish to slow abrasion
• Construction: repeatedly forged links for improved tensile strength
• Includes extras: four master links for secure joining and replacement

What tools and parts are included to install or adjust the chains?

The kit arrives with the most commonly required accessories so you can install, tighten, or shorten the chains without extra trips to the store. A compact chain breaker lets you remove excess links, and the included tensioner adjusters make achieving correct chain tension straightforward.

• 1 × 90-link rear drive chain (red finish)
• 1 × 42-link front jackshaft chain (red finish)
• 1 × 420 chain breaker for sizing the chain length
• 2 × chain tensioner adjusters and 4 × master links included

How should I maintain these chains to get the best life and performance?

Regular inspection, proper tension, and periodic lubrication are the core steps to keep the chains functioning well. Check for stretched links or corrosion, keep lubrication appropriate for the riding conditions, and use the included tensioners to maintain the manufacturer-recommended slack.

• Inspect for wear, stiff links, and correct tension before each ride
• Lubricate chain after cleaning and before storage to prevent corrosion
• Use the chain breaker to remove excess links and secure with master links
• Replace the chain if noticeable elongation or cracked links appear

Who is this for: This YOXUFA 420 chain kit is aimed at mini bike owners, small-engine hobbyists, and repair shops that service Coleman CT200-style bikes, Baja and Massimo mini bikes, and other 196–212cc platforms using a 420 chain. It suits riders who want a ready-to-install red rear and jackshaft chain set with the tools needed for trimming and tensioning, plus extra master links for a secure connection. If you need a direct replacement or an upgrade to a hardened alloy chain with included installation aids, this kit is a practical, all-in-one option.