Vortex 775AZK-42 CAT5 Aluminum Rear Sprocket 520 Pitch 42 Tooth Black

The Vortex 775AZK-42 is a premium CAT5 aluminum rear sprocket designed for high-performance motorcycle applications. This lightweight racing sprocket features 42 teeth and is manufactured for 520 pitch chain systems, offering an excellent balance of durability and weight reduction compared to OEM steel sprockets.

Key Features:

• 100% CNC machined in the U.S.A. from specially formulated 7075-T6 aluminum alloy
• Hardcoat black anodized finish with PTFE coating for added lubricity and durability
• Saber tooth grooves with unique tooth design that increases sprocket longevity
• Lightweight construction reduces rotating mass for improved acceleration and handling
• 520 pitch configuration allows for weight-saving conversion from stock 525 or 530 chain systems
• Distinctive Vortex patented design with precision machining throughout

The CAT5 hardcoat finish provides superior wear resistance while the aluminum construction significantly reduces unsprung weight. This sprocket is ideal for riders seeking performance upgrades for street or track use, delivering both aesthetic appeal and proven race-tested durability.