KAMIER 25H Roller Chain 10ft (480 Links) Replacement Kit for Razor MX/E Series with Chain Breaker & Master Links

KAMIER 25H roller chain is a 10‑foot, 480‑link replacement chain kit designed to fit Razor MX/E series electric dirt bikes, go‑karts, ATVs and small gas mini bikes.

This complete chain kit gives you a long length of 25H‑pitch roller chain plus the tools and spare master links to size and install it on a wide range of kids’ electric dirt bikes, pocket rocket mini bikes, and small gas scooters. The set is made for hobbyists and parents who need a durable, serviceable drive chain to restore drive function or to keep a spare on hand for maintenance and repairs.

Will this chain fit my Razor MX350, E300 or similar model?

Yes—the chain uses 25H pitch and provides 480 links so you can shorten it to the exact length needed. It was produced to match common sprocket spacings and fits many Razor MX and E series models plus comparable mini bikes and quads that use 25H chains.

• Size: 25H pitch, compatible with common small‑bike sprockets.
• Length: 10 feet (300 cm) before trimming—ample for most drivetrains.
• Included master links make rejoining the chain straightforward after cutting.
• Check your sprocket teeth count and center distance before cutting.

What comes in the kit and what tools do I get?

The package bundles the full chain length with a chain breaker tool and multiple master links so you have everything to cut, remove excess links, and reconnect the chain. That saves a trip to the hardware store and ensures compatibility between the chain ends and joining hardware.

• 25H roller chain, 480 links (10 ft / 300 cm).
• One handheld chain breaker for removing links and punching pins.
• Ten master links so you can rebuild or carry spares for future repairs.
• Basic instructions typically included—follow torque and safety guidance when reassembling.

How durable is the chain and how should I maintain it?

The chain is built for light motorcycle and small engine use; with regular tension checks and lubrication it will provide reliable service. Proper maintenance extends life and reduces wear on sprockets.

• Inspect tension and alignment every few rides, especially after the first hours of break‑in.
• Lubricate the rollers and pins regularly with a light chain lube or oil formulated for small chains.
• Replace when you see elongated pitch, heavy rust, or damaged rollers to protect sprockets.

How do I choose the right replacement chain length for my vehicle?

Measure the current chain or determine the center‑to‑center distance of your sprockets and add slack for safety before trimming. Using the supplied breaker tool, remove excess links and use a master link to finish the splice; verify tension and free play per your vehicle’s manual.

• Always leave recommended free play—typically small‑bike standards apply.
• Use the chain breaker to remove pins cleanly and avoid bending adjacent links.
• Test ride at low speed and recheck alignment and tension after initial trials.

Who is this for: This KAMIER 25H 10‑foot chain kit is aimed at riders, parents, and DIY mechanics who maintain Razor electric dirt bikes (MX, E and related series), pocket rockets, small gas minis, and light ATVs. It’s suited for anyone needing a long, serviceable replacement chain with the tools and master links to size and install it at home—ideal for repair shops, hobbyists, and families who perform routine drivetrain maintenance.