Renthal front Sprockets are simply the finest front Sprocket on the market today. Renthal front Sprockets feature: Specially developed 655M13 Nickel-Chrome-Molybdenum alloy steel, case hardened core refined to give the ultimate combination of strength and hardness.

• Ultimate combination of strength and lightness
• 655M13 Nickel-Chrome-Molybdenum alloy steel case hardened core