Vortex 245A-42 Rear Sprocket Aluminum 42-Tooth Silver Anodized Racing Sprocket

The Vortex 245A-42 is a 42-tooth aluminum rear sprocket designed for competitive motorcycle racing and performance street riding. Manufactured entirely in the USA using CNC machining, this sprocket is built to exacting tolerances from a specially formulated aluminum alloy developed to Vortex's own specifications, delivering an ideal balance of strength and reduced rotating mass.

Key Features:

• Lightweight aluminum construction — reduces unsprung and rotating weight for improved throttle response and acceleration
• 100% CNC manufactured in the USA — precision machining ensures consistent quality and tight tolerances
• Specially formulated aluminum alloy — proprietary Vortex material specification for optimal strength-to-weight ratio
• Silver anodized finish — corrosion-resistant anodizing protects the sprocket surface and extends service life
• Patented Vortex tooth profile — unique tooth geometry promotes smooth chain engagement and reduces wear, increasing sprocket longevity
• 42-tooth rear sprocket — direct replacement or gearing upgrade option depending on application

The Vortex 245A-42 is a favorite among road racers and track day enthusiasts who demand reliable, race-proven drivetrain components. The combination of USA-made CNC precision, proprietary alloy, and Vortex's patented tooth design makes this sprocket a top-tier choice for riders looking to optimize their gearing without adding unnecessary weight.