Renthal® 508--520-13GP - Grooved Front Chainwheel

Renthal front chain-wheels are simply the finest front chain-wheel on the market today. Renthal 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. 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.

Renthal off-road front chainwheels are chosen by more factory motocross and supercross teams than any other chainwheel on the market today.
Most models utilize mud grooves which are CNC machined into each tooth on both sides to allow mud to flow away from the key contact points between the chain and the chainwheel. This helps reduce wear and increases the drivetrain lifespan.
For the best way to find the correct front chainwheel for your model, use Renthal Fit My Bike feature.
Renthal grooved off-road front chainwheels are designed to offer a long lasting front chainwheel in a lightweight design which offers maximum power transfer.
They are CNC machined from a cased hardened and core refined 655M13 nickel chromium steel.
Mud grooves are CNC machined into each tooth on both sides to allow mud to flow away from the key contact points between the chain and the chainwheel. This helps reduce wear and increases the drivetrain lifespan.