RZEOZU Mini Bike 35 Chain 140 Links Compatible with Coleman

The RZEOZU Mini Bike 35 Chain Kit is a complete replacement set — 140-link 35 chain, metal tensioner, 10 master links and a chain breaker — designed to restore reliable drive performance on Coleman CT100U, Baja/Doodlebug and Motovox mini bikes.

Whether you’re repairing a weekend pit bike or upgrading worn drivetrain parts, this all-in-one kit supplies the core components needed to rebuild the final drive. Built from alloy steel, the chain and tensioner resist wear and corrosion for longer service life. The kit includes useful installation hardware so you can adjust chain tension and fit the chain cleanly without sourcing extra parts.

Which mini bikes and engines will this 35 chain fit?

This chain kit was engineered for popular small-frame mini bikes and kart models. It fits Coleman Powersports CT100U and CC100X models, Baja Motorsports Doodlebug DB30 variants (Blitz, Dirt Bug, Viper), and Motovox MBX10/MBX11, and is suitable for bikes running small horizontal engines.

• Compatible with engines commonly used on these frames such as Predator 79cc, 97cc, 98cc and 100cc.
• Designed as a 35-size chain with 140 links to allow custom cutting for the correct length.
• Works on standard mini bike sprocket tooth counts and layouts.

How does the included tensioner and accessories improve chain performance?

The metal chain tensioner helps maintain correct chain alignment and tension, reducing slippage and uneven wear during use. A properly tensioned chain runs quieter and transfers power more efficiently, while the alloy-steel construction adds durability under load and in outdoor conditions.

• The tensioner adjusts chain take-up to prevent the chain from derailing under acceleration.
• Alloy-steel build improves resistance to corrosion and abrasion compared with lower-grade metals.
• 10 master links and a chain breaker make trimming and reconnecting the chain straightforward.

What tools and steps are needed to install this 35 chain kit?

Installation requires basic hand tools and the included chain breaker and master links. After measuring and trimming the chain to correct length, mount the chain on the sprockets, use the tensioner to set slack, and secure with a master link. Always double-check alignment and torque before test riding.

• Use the supplied chain breaker to remove excess links for a custom fit.
• Fit a master link to rejoin the chain; ensure the clip or retainer faces away from sprocket contact.
• Tighten the chain tensioner so chain slack meets the bike manufacturer’s recommended specification.

How does material choice affect durability and maintenance?

The chain and tensioner are made of hardened alloy steel for improved wear resistance and longer service intervals. Corrosion resistance helps protect parts stored outdoors or used in wet conditions, though regular cleaning and lubrication remain essential to maximize life.

• Alloy steel resists stretching and premature wear under normal riding loads.
• Corrosion resistance extends service life in mixed-weather use.
• Routine lubrication and chain tension checks are recommended after installation and periodically during use.

Who is this for: The RZEOZU Mini Bike 35 Chain Kit is intended for DIY mechanics, hobbyists and mini bike owners who need a reliable, ready-to-install replacement chain assembly compatible with Coleman CT100U, Baja/Doodlebug DB30 family models and Motovox mini bikes. It’s a practical choice when you want to restore drivetrain reliability without hunting for individual parts — the kit’s chain, tensioner, master links and chain breaker provide the essentials to complete a clean, durable repair or upgrade.