Renthal 520 Ultralight Hard Anodized Aluminum Rear Sprocket 40T

Hard anodized finished for increased longevity.

Renthal Ultralight road and road race chain wheels are manufactured from specially enhanced high strength 7075-T6 Aluminum alloy to give a good combination of strength and weight reduction. The chain wheels are CNC machined which ensures a perfect fit and concentricity.

Hard Anodizing is an integral surface coating which significantly increases the hardness and wear resistance of the chain wheel surface, which results in increased wear resistance.

• Computer aided design enables the ultimate combination of strength and lightness
• High strength 7075-T6 aluminum alloy provides excellent longevity
• Precision CNC machined to extremely tight tolerances
• Made in the UK