Vortex 337ZK-54 CAT5 Aluminum Rear Sprocket 520 Pitch 54-Tooth Black

The Vortex 337ZK-54 is a CAT5 lightweight aluminum rear sprocket featuring a 520 chain pitch and 54 teeth, finished in an anodized black hardcoat. Designed for sport and performance motorcycle applications, this sprocket is a direct upgrade over heavy OEM steel units, reducing rotating mass and improving throttle response.

Key Features:

• Lightweight CAT5 aluminum construction — machined from aerospace-grade aluminum alloy per Vortex specifications
• 100% CNC manufactured in the USA for precise tolerances and consistent quality
• 520 chain pitch with 54 teeth
• Anodized black finish with contrasting silver machine-cut highlights on the sprocket face
• Saber tooth groove design — Vortex patented tooth profile increases sprocket longevity and reduces chain wear
• Color anodizing excludes sweeps, mud grooves, and teeth for a distinctive two-tone appearance
• Vortex patented sprocket design unlike any OEM or generic aftermarket sprocket

The Vortex CAT5 rear sprocket is the preferred choice for both track-day enthusiasts and street riders seeking a performance-oriented drivetrain upgrade. Its reduced weight lowers rotating inertia, delivering quicker acceleration and more responsive power delivery compared to standard steel sprockets.