Vortex 641AK-49 Aluminum Rear Sprocket 49 Tooth

The Vortex 641AK-49 is a high-performance aluminum rear sprocket featuring 49 teeth, designed for sportbike and performance motorcycle applications. This sprocket is precision-machined from 7075-T6 aluminum alloy, offering an excellent strength-to-weight ratio that reduces unsprung weight for improved handling and acceleration.

Key Features:

• 49-tooth configuration for optimized gearing
• Constructed from lightweight 7075-T6 aluminum alloy
• CNC-machined for precise tolerances and perfect chain alignment
• Hard-anodized finish for enhanced durability and wear resistance
• Self-cleaning mud grooves help prevent debris buildup
• Laser-etched tooth count and size markings
• Significantly lighter than steel sprockets for reduced rotating mass

Vortex sprockets are engineered to meet or exceed OEM specifications, ensuring reliable performance on the street or track. The aluminum construction makes this sprocket ideal for racers and performance enthusiasts looking to reduce weight while maintaining durability. Compatible with 520-pitch chains.