Renthal 520 R33 drive chain is built for reliable power transfer and longer service life on off-road bikes up to 450 cc. It uses Renthal SRS (Self-Regulating Seals) instead of a traditional O-ring to improve longevity and efficiency.
The Renthal 520 R33 (R3) drive chain is designed for riders who want a strong, long-lasting chain without the drawbacks of a traditional O-ring design. By using Renthal’s SRS (Self-Regulating Seals) ring system, this chain helps increase longevity and maintain consistent performance in harsh motocross and enduro conditions. High-carbon alloy steel pins, solid bushings and rollers, plus shot-peened plates and rollers improve fatigue resistance—ideal for hard riding, frequent acceleration, and gritty environments.
It’s also made easier to live with: the included hollow-end rivet link simplifies installation because it doesn’t require a Quad Stake Rivet tool, and a clip-type link is included as well—giving you practical options for setup and servicing.