Renthal 524U-520-46GRSI Ultralight Rear Sprocket 520 Pitch 46T

The Renthal 524U-520-46GRSI is a high-performance Ultralight rear sprocket featuring a 520 pitch chain and 46 teeth, engineered for serious off-road and motocross riders who demand lightweight durability without sacrificing strength. Renthal is a trusted name in the powersports industry, supplying components to top professional teams worldwide.

Key Features:

• Chain Pitch: 520 — a popular standard for motocross and off-road applications
• Tooth Count: 46T for optimized acceleration and low-end torque
• Ultralight Construction: CNC-machined from high-strength 7075 aluminum alloy for significant weight reduction over steel sprockets
• Hard Anodized Finish: Provides superior wear resistance and corrosion protection
• Steel Inner Inserts (SI): Reinforced steel inserts at the mounting holes extend sprocket life and resist deformation under high-stress conditions
• Color: Green (GR) — matches Renthal's iconic color scheme
• Precision Machined: Tight tolerances ensure smooth, quiet chain engagement and extended chain life

The Renthal Ultralight rear sprocket is the preferred choice of professional motocross and enduro racers who need to shed rotational mass for improved handling and throttle response. The steel inserts at the bolt holes are a hallmark Renthal feature that prevents the soft aluminum from wallowing out over time, making this sprocket an excellent long-term investment for competitive and recreational riders alike.