Vortex 253ZK-40 CAT5 Aluminum Rear Sprocket 40-Tooth Black

The Vortex 253ZK-40 is a CAT5 lightweight aluminum rear sprocket featuring a 40-tooth count with a black anodized finish. Designed as a direct OEM replacement or performance upgrade, this sprocket delivers reduced rotating mass compared to stock steel sprockets, contributing to improved throttle response and acceleration.

Key Features:

• Lightweight CAT5 aluminum construction — reduces rotating mass for improved performance
• 100% CNC manufactured in the U.S.A. — precision machined for consistent fit and quality
• Specially formulated alloy per Vortex specifications for strength and durability
• Saber tooth groove design — patented tooth profile increases sprocket longevity and chain engagement
• Black anodized finish with contrasting silver machined highlights for a clean, aggressive appearance
• 40-tooth rear sprocket — allows tuning of gear ratio for acceleration or top-speed preference

Vortex sprockets are a trusted choice among street riders and racers alike. The CAT5 series utilizes a patented sprocket design unlike any other on the market, combining performance engineering with lasting durability. Verify pitch and bolt pattern compatibility with your specific motorcycle before ordering.