Renthal Ultralight Grooved Front Sprocket

• Renthal off-road front chainwheels are chosen by more factory motocross and supercross teams than any other chainwheel on the market today.
• They are CNC machined from a cased hardened and core refined 655M13 nickel chromium steel.
• Machined self-cleaning mud grooves at each tooth to help increase wear resistance
• 10-15% lighter than OEM front sprockets

Renthal front chain-wheels are simply the finest front chain-wheel on the market today. Our Front chain-wheels feature a specially developed nickel-chrome-molybdenum steel which is case hardened and core refined to give the ultimate combination of strength and hardness. ULTRALIGHT chain wheels, Renthal have taken extra time to machine away surplus mass to reduce the mass of the chain-wheel. Chain-wheel mass reduction offers a two-fold gain. The overall mass of the machine is slightly reduced and the rotating mass of the gearbox is reduced, allowing faster engine spin-up and shorter over-run. GROOVED chain-wheels have cut outs at the bottom of the tooth to allow the escape of mud that would otherwise be trapped between the chain-wheel and the chain. Allowing the easy escape of the mud prevents tension being placed on the chain and the resulting accelerated wear.