Renthal 439 - 520-13GP Front Sprocket Grooved Pitch Sprockets - 13T 520

The Renthal 439--520-13GP is a premium front sprocket featuring a grooved tooth design for superior performance in challenging off-road conditions. With 13 teeth and 520 pitch chain compatibility, this sprocket is engineered for dirt bikes and motorcycles that demand exceptional durability.

Advanced Material Construction:

Manufactured from specially developed nickel-chrome-molybdenum steel, this sprocket undergoes case hardening and core refinement to deliver the ultimate combination of strength and hardness. This advanced metallurgy ensures extended service life even under extreme riding conditions.

Grooved Tooth Technology:

The grooved design features strategic cutouts at the bottom of each tooth, allowing mud and debris to escape rather than becoming trapped between the sprocket and chain. This self-cleaning design prevents unnecessary tension on the chain, reducing accelerated wear and maintaining optimal power transfer in muddy or dirty conditions.

Key Specifications:

• Teeth Count: 13T
• Chain Pitch: 520
• Grooved tooth design for mud clearance
• Nickel-chrome-molybdenum steel construction
• Case hardened and core refined for maximum durability

Renthal front sprockets are recognized as industry-leading components, trusted by professional riders and enthusiasts worldwide for their quality and performance.