Vortex 255AZK-44 Aluminum Rear Sprocket Black 44-Tooth 520 Chain

The Vortex 255AZK-44 is a lightweight aluminum rear sprocket designed for motorcycle street and racing applications using a 520-pitch chain. Featuring a 44-tooth count and a black anodized finish, this sprocket delivers the performance and durability that Vortex Racing is known for since 1995.

Manufactured entirely in the USA, each sprocket is 100% CNC-machined from a specially formulated aluminum alloy to exacting tolerances. The black anodized surface treatment resists corrosion and wear, while Vortex's patented tooth profile is engineered to extend sprocket life and improve chain engagement over the long haul.

Key Features:

• 44-Tooth rear sprocket for 520-pitch chain
• Lightweight aluminum construction reduces rotating mass for improved acceleration
• Black anodized finish for corrosion resistance and aggressive styling
• 100% CNC manufactured in the USA to tight tolerances
• Specially formulated aluminum alloy per Vortex specifications
• Patented unique tooth design increases sprocket longevity
• Direct replacement for OEM gearing or for custom gear ratio tuning

Swapping to an aluminum sprocket significantly reduces unsprung and rotating weight compared to stock steel sprockets, contributing to quicker throttle response and more precise handling. The Vortex 255AZK-44 is an ideal upgrade for riders looking to optimize gear ratios or refresh a worn drivetrain with a proven racing-grade component.