Vortex 642A-59 Aluminum Rear Sprocket 520 Pitch 59 Tooth Silver

The Vortex 642A-59 is a high-performance aluminum rear sprocket designed for serious riders who demand precision and durability. This 59-tooth sprocket is engineered for 520 pitch chain applications and features Vortex's distinctive design that sets it apart from conventional sprockets.

Premium Construction:

• CNC machined from 7075 T6 aerospace-grade aluminum for exceptional strength-to-weight ratio
• 100% computer-designed and manufactured in the USA to exact specifications
• Unique tooth profile with saber tooth grooves increases sprocket longevity
• Silver anodized finish provides corrosion resistance and a clean appearance
• Significantly lighter than OEM steel sprockets for reduced rotating mass

Performance Benefits:

• Reduced unsprung weight improves acceleration and handling response
• Vortex patented tooth design enhances chain engagement and wear characteristics
• Precision CNC machining ensures perfect concentricity and smooth power transfer
• Ideal for 520 conversion applications or direct replacement

The 642A series represents Vortex Racing's commitment to manufacturing premium motorcycle drivetrain components. Each sprocket undergoes rigorous quality control to ensure it meets the demanding standards of professional racers and enthusiasts alike.