Vortex 828C-55 CAT5 Rear Sprocket 55 Tooth

The Vortex 828C-55 is a high-performance CAT5 rear sprocket designed for sport bikes and aggressive street riding. This 55-tooth sprocket is precision-machined from 7075-T6 aluminum alloy, providing an optimal balance of strength and weight savings compared to steel sprockets.

Key Features:

• CAT5 (Computer Aided Technology 5) construction with advanced tooth profile design for maximum chain life
• 55 teeth for modified gearing applications
• 7075-T6 aluminum construction reduces rotating mass for improved acceleration
• CNC-machined for precise tolerances and optimal chain engagement
• Hard-anodized finish for enhanced durability and corrosion resistance
• Self-cleaning mud grooves help prevent debris buildup
• Drilled weight reduction holes where structurally appropriate

Vortex CAT5 sprockets feature a proprietary tooth profile that has been engineered to reduce friction and wear on both the sprocket and chain. The hard anodizing process creates a surface that is significantly harder than the base aluminum, extending service life while maintaining light weight.