Upgrade your final drive with the ESJOT Standard rear sprocket for 520 chains, built for long service life in wear-intensive conditions. Precision Diamond Cut 2.0 toothing and tight run-out tolerances deliver smooth, consistent power transfer.
The ESJOT Standard Rear Sprocket (520 / 51T) is designed to meet high OEM requirements and deliver dependable performance where drivetrain parts wear the fastest. With a high-strength steel construction and a durable surface treatment, it helps keep your bike’s power delivery smooth and reliable ride after ride.
If your current sprocket is hooking teeth, causing noise, or accelerating chain wear, replacing it with a precision-made sprocket is one of the quickest ways to restore efficient power transfer. ESJOT’s Diamond Cut 2.0 manufacturing process ensures accurate tooth geometry for clean engagement with your chain—ideal for demanding motocross and enduro use.
