Ultralight Rear Sprocket

The Renthal Ultralight Rear Sprocket is designed for riders who want faster response and more efficient drive without compromising durability. Its CNC-machined, computer-aided ultra-light design reduces unsprung weight, helping your bike feel more agile while improving power transfer at the rear wheel. Built from specially enhanced 7075-T6 aluminum, it delivers excellent strength-to-weight performance for demanding motocross and enduro use.

Thanks to a special tooth profile, the chain rolls on and off the sprocket more smoothly—reducing noise, improving drivetrain efficiency, and helping extend service life in harsh riding conditions.

Key features:

• ✅ CNC-machined (not stamped) ultra-light design to reduce unsprung weight
• ✅ High-strength, specially enhanced 7075-T6 aluminum construction
• ✅ Optimized tooth profile for smoother engagement, longer wear and less noise

Benefits of use:

• 🔹 Lighter rotating mass for quicker acceleration feel and improved handling response
• 🔹 Smoother chain movement for reduced drivetrain noise and more consistent power delivery
• 🔹 Strong, race-proven material choice that balances durability and low weight

Technical specifications:

• 📌 Mounting position: Rear
• 📌 Chain size: 520
• 📌 Tooth count: 49T
• 📌 Material: 7075-T6 Aluminum
• 📌 Color/finish: Green

Why choose this product?

• ⭐ Premium Renthal quality with a focus on performance and reliability
• ⭐ Designed to improve power transfer while keeping weight to a minimum
• ⭐ A smart upgrade when refreshing your drivetrain for racing or hard trail use