Renthal 441U-428-51GPSI Ultralight Rear Sprocket 428 Pitch 51 Tooth Silver

The Renthal 441U-428-51GPSI Ultralight rear sprocket combines race-proven performance with significant weight savings for competitive motocross and off-road motorcycles. Manufactured from a specially enhanced 7075 T6 aluminum alloy, this sprocket delivers exceptional strength while reducing rotational mass to improve acceleration and handling response.

Key Features:

• 428 pitch chain compatibility with 51-tooth configuration
• Ultralight construction using aerospace-grade 7075 T6 aluminum alloy
• CNC-machined grooved design for optimal mud and debris clearance
• Self-cleaning groove pattern extends chain and sprocket life
• Silver anodized finish for corrosion resistance and durability
• Precision-machined tooth profile ensures smooth chain engagement
• Drilled weight-reduction holes reduce unsprung mass

Renthal Ultralight sprockets are the choice of professional riders worldwide, offering the perfect balance of strength, weight savings, and durability. The grooved design helps shed mud and dirt in demanding off-road conditions, while the hard-anodized surface treatment provides excellent wear resistance. Each sprocket is manufactured to exacting tolerances to ensure proper chain alignment and maximum performance life.