Renthal Grooved Front Sprocket 307-420-13GP — KTM 65 SX 1998-2009

Product Description

The Renthal Grooved Front Sprocket (307-420-13GP) is the ultimate choice for KTM 65 SX riders demanding top-tier durability and performance. Precision CNC-machined from case-hardened and core-refined 655M13 nickel-chromium steel, this sprocket offers the perfect balance of strength and longevity to withstand the rigors of competitive motocross.

What sets this sprocket apart is its advanced self-cleaning mud groove design. By machining these grooves at the base of each tooth, Renthal effectively prevents mud and debris buildup, which significantly increases the wear resistance of both your chain and sprocket. The ultralight design delivers a 10-15% weight savings compared to stock components, reducing rotating mass for improved acceleration.

Top Features: Renthal Grooved Front Sprocket

• CNC-machined from high-strength 655M13 nickel-chromium steel
• Features self-cleaning mud grooves to reduce debris buildup and increase lifespan
• Ultralight design reduces rotating mass by 10-15% for better performance
• Case-hardened and core-refined for maximum wear resistance
• Engineered specifically for the KTM 65 SX 420 chain drive system

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Why choose a grooved sprocket over a standard one?
A: The grooves are engineered to evacuate mud and dirt from the root of the tooth. In wet or muddy conditions, a standard sprocket can get packed with debris, causing the chain to "climb" the teeth and wear out prematurely. The Renthal GP design keeps your drive system clean and efficient.

Q: Does the lighter weight really make a difference?
A: Absolutely. Reducing rotating mass at the countershaft sprocket helps the engine spin up faster, giving you better throttle response and improved acceleration off the starting gate.

Expert Pro-Tip: Never install a new sprocket with a worn, stretched chain. Doing so will cause the new sprocket teeth to hook and wear out within just a few hours of riding. Always replace your chain and sprockets as a complete set to ensure maximum life and smooth power transfer to the rear wheel.

Recommended Pairings:
o KTM 65 SX Performance Parts
o High-Performance MX Chains
o Brake & Drivetrain Service Tools

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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