Vortex 642A-55 Aluminum Rear Sprocket

The Vortex 642A-55 is a precision-manufactured aluminum rear sprocket designed for high-performance motorcycle applications. Constructed from lightweight 7075-T6 aluminum alloy, this sprocket features a 55-tooth configuration that provides excellent strength-to-weight ratio for optimal power transfer and acceleration.

Key Features:

• 7075-T6 aluminum construction for reduced weight and increased performance
• 55-tooth count for precise gearing customization
• CNC-machined for accurate tooth profile and consistent chain engagement
• Hard-anodized finish for improved wear resistance and corrosion protection
• Self-cleaning mud groove design helps prevent debris buildup
• Laser-etched tooth count marking for easy identification

Vortex sprockets are engineered to meet or exceed OEM specifications while offering weight savings and performance benefits. The aluminum construction reduces unsprung weight, improving suspension response and handling characteristics. Each sprocket undergoes rigorous quality control to ensure proper fitment and long service life.