XIKOBY 25H Replacement Chain Kit for Razor MX650/MX500/SX500 — 132-Link, Heat-Treated Steel, Adjustable Tensioner

XIKOBY's 25H 132-link replacement chain kit is a complete drive-chain upgrade designed to restore reliable power transfer and keep Razor MX650, MX500 and SX500 electric dirt bikes running smoothly.

If your Razor electric motocross bike is showing chain wear, skipping, or poor alignment, this kit replaces the entire drive assembly with a heavy-duty 25H chain, extra master links, a chain breaker, and an adjustable tensioner. The components are matched to standard Razor pitches to ensure proper engagement with original sprockets and deliver longer service life than worn stock chains.

How does this chain kit improve performance on my Razor MX650 or MX500?

The XIKOBY 25H chain is manufactured from heat-treated, high-strength steel alloys to resist stretching and failure under normal off-road loads. A precisely cut 132-link length and accurate pitch help the chain mesh cleanly with existing sprockets, reducing noise and energy loss.

• 132 links sized to suit Razor MX650/MX500/SX500 drive geometry
• Heat-treated plates and rivets for higher tensile strength
• Accurate pitch to reduce skipping and vibration
• Bright red finish improves visibility and aesthetics

What tools and extras come with the kit for installation?

The kit includes everything you need to fit the chain without sourcing additional parts: multiple master links to set an exact length, a compact chain breaker to remove excess links, and a spring-loaded chain tensioner to maintain correct alignment.

• Chain breaker for removing unwanted links easily
• Eight master links for flexible link count adjustments
• Adjustable chain tensioner with bearing and lock nut
• Pre-assembled chain for quicker installation

Is the XIKOBY chain durable and safe for off-road use?

The chain is built to withstand typical off-road riding stresses thanks to alloy steels and thermal processing that increase fatigue resistance. The included tensioner helps prevent derailment by maintaining even chain tension and alignment under load.

• Alloy-steel construction resists breakage and fatigue
• Heat treatment improves long-term wear characteristics
• Tensioner prevents slack and reduces risk of chain drop
• Visual red finish makes inspection easier between rides

How easy is it to install and maintain this chain kit?

The set is designed for home mechanics: the chain ships pre-assembled with master links and a breaker tool to remove extra links, and the tensioner uses a simple adjust-and-lock system. Routine lubrication and periodic tension checks are recommended to maximize lifespan.

• Pre-assembled chain speeds initial fitment
• Master links allow quick length adjustments without special parts
• Tensioner uses a spring and lock nut for simple tensioning
• Regular lube and inspection extend service interval

Who is this for: Riders, hobbyists, and small-shop mechanics who own Razor MX650, MX500, SX500, RSF650, SX650 or similar electric dirt bikes and need a robust, complete chain replacement solution. Choose this kit if you want a durable, correctly pitched 25H chain plus the tools and tensioner to fit and maintain it—ideal for restoring drivetrain reliability after wear or damage.