Vortex 154ZK-54 CAT5 Aluminum Rear Sprocket 520 Pitch 54-Tooth Black

The Vortex 154ZK-54 is a CAT5 series aluminum rear sprocket featuring a 520 pitch and 54 teeth, finished in a striking black anodized coat with contrasting silver machined highlights. Engineered for sport and street motorcycle riders who demand performance-grade drivetrain components, this sprocket delivers a measurable reduction in rotating mass over OEM steel alternatives.

Key Features:

• Lightweight CAT5 aluminum construction — significantly reduces rotating mass compared to stock steel sprockets, improving acceleration and throttle response
• Specially formulated alloy per Vortex specifications — engineered for strength and longevity under demanding riding conditions
• 100% CNC manufactured in the U.S.A. — precision machined to tight tolerances for concentric fit and smooth, quiet chain engagement
• Saber tooth groove design — Vortex's patented tooth geometry extends sprocket life and reduces chain wear
• Black anodized finish with silver machined accents — color anodizing is applied before CNC machining, producing a durable, visually distinctive two-tone appearance
• 520 pitch, 54 teeth — a tall rear tooth count ideal for tuning low-end torque and acceleration characteristics

The Vortex CAT5 series is a trusted choice among club racers and performance street riders alike. Each sprocket is produced domestically using a proprietary alloy formulation and machined to exacting standards, ensuring a precise, rattle-free fit. The 154ZK-54 is part of Vortex's extensive CAT5 lineup and is designed as a direct bolt-on replacement for compatible applications.