Vortex 144AZRV4-42 Aluminum Rear Sprocket 525 Pitch 42-Tooth

The Vortex 144AZRV4-42 is a lightweight aluminum rear sprocket designed for high-performance street and racing applications. Featuring a 525 pitch and 42 teeth, this sprocket is engineered to deliver reliable power transfer while reducing rotating mass for improved throttle response and drive efficiency.

Key Features:

• 525 Pitch chain compatibility with 42-tooth rear sprocket configuration
• CNC machined in the USA from a specially formulated aluminum alloy per Vortex specifications
• Anodized finish for corrosion resistance and long-lasting appearance
• Vortex patented tooth design engineered for increased sprocket longevity
• Lightening features reduce overall rotating mass for improved acceleration and deceleration response
• Precision tolerances ensure smooth, consistent chain engagement

Vortex Racing has been manufacturing top-quality motorcycle drivetrain components for over 15 years, with parts trusted by professional race teams worldwide. The 144-series sprockets are purpose-built for 525-pitch chain applications, making this an ideal OEM replacement or performance upgrade for properly equipped motorcycles.