Vortex 628K-57 Black Aluminum Rear Sprocket 57-Tooth

The Vortex 628K-57 is a 57-tooth aluminum rear sprocket finished in Vortex's signature black hard-coat anodized treatment for enhanced durability and corrosion resistance. Engineered for street and track performance, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy developed to Vortex's exact specifications.

The hard-coat black anodized finish (denoted by the "K" designation) offers added surface hardness over standard silver anodized sprockets, extending service life under demanding conditions. The higher 57-tooth count delivers increased low-end torque and improved acceleration response compared to stock gearing.

Key Features:

• 57-Tooth rear sprocket for enhanced low-end torque and acceleration
• Black hard-coat anodized aluminum finish for superior corrosion resistance and durability
• 100% CNC manufactured in the USA from Vortex-spec aluminum alloy
• Vortex patented tooth profile for extended sprocket longevity and smooth chain engagement
• Lightweight construction reduces rotating mass for improved throttle response
• Designed as a direct OEM replacement or performance upgrade

Vortex Racing has been producing top-quality motorcycle drivetrain components in the USA for over 15 years, with products trusted by professional race teams worldwide. The 628K-57 rear sprocket is the ideal choice for riders seeking a reliable, performance-oriented replacement sprocket.