Vortex 245AZR-42 CAT5 Rear Aluminum Sprocket 42-Tooth 520-Pitch Red Anodized

The Vortex 245AZR-42 is a CAT5 series rear aluminum racing sprocket featuring a 42-tooth, 520-pitch configuration with a striking red anodized finish and contrasting silver machined accents. Engineered for performance riders who demand both function and style, this sprocket is a direct upgrade over heavy OEM steel units.

Machined from a specially formulated aluminum alloy per Vortex's own specifications, the CAT5 sprocket significantly reduces rotating mass compared to stock steel sprockets, translating directly into improved throttle response, acceleration, and handling feel.

Key Features:

• 42-Tooth, 520-Pitch rear sprocket configuration
• Red anodized finish with contrasting silver CNC-machined highlights
• 100% CNC manufactured in the U.S.A. from specially formulated aluminum alloy
• Saber tooth groove design — patented tooth profile engineered to increase sprocket longevity
• Lightweight aluminum construction reduces rotating mass for improved acceleration and handling
• Vortex patented sprocket design unlike any other on the market
• Anodized finish helps resist corrosion

The Vortex CAT5 is the go-to choice for street riders and track enthusiasts looking to shed weight from the drivetrain without sacrificing durability. The 245AZR-42 is part of Vortex's broad CAT5 lineup, available across 520, 525, and 530 chain pitches to suit a wide range of motorcycle applications.