Vortex 151ZR-33 CAT5 420 Rear Sprocket 33-Tooth Red Aluminum

The Vortex 151ZR-33 is a CAT5 series 420-pitch, 33-tooth aluminum rear sprocket finished in a bright red anodize with contrasting silver machine cuts. Designed for small-displacement motorcycles and mini bikes running a 420 chain, this sprocket delivers a lightweight performance upgrade over stock steel units.

Key Features:

• 420 Chain Pitch — compatible with standard 420-pitch drive chains
• 33 Teeth — direct replacement or gearing alternative in the CAT5 lineup
• Lightweight CAT5 Aluminum Construction — machined from a specially formulated aerospace-grade alloy per Vortex specifications, significantly reducing rotating mass compared to OEM steel sprockets
• 100% CNC Manufactured in the U.S.A. — precision machined to exacting tolerances for a concentric, consistent fit
• Vortex Patented Saber Tooth Groove Design — unique tooth geometry engineered to increase sprocket longevity and reduce chain wear
• Red Anodized Finish — color anodizing with bright silver highlights on the machined surfaces for a distinctive appearance
• Improved Acceleration — reduced rotating mass allows for improved acceleration and handling response

The Vortex CAT5 rear sprocket is a proven choice for riders seeking a high-quality, race-inspired drivetrain component that delivers both performance and durability on the street or track.