Vortex 154ZR-42 CAT5 Red 42-Tooth Aluminum Rear Sprocket

The Vortex 154ZR-42 is a CAT5 aluminum rear sprocket featuring 42 teeth with a striking red anodized finish and contrasting silver machined accents. Engineered for performance-oriented riders, this sprocket delivers a significant weight reduction over OEM steel units, resulting in reduced rotating mass and measurable improvements in acceleration and throttle response.

Key Features:

• CAT5 lightweight aluminum construction — significantly lighter than stock steel sprockets to reduce rotating mass
• 100% CNC manufactured in the U.S.A. to tight tolerances for precise fit and consistent performance
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Saber tooth groove design — Vortex patented tooth profile increases sprocket longevity and chain engagement
• Red anodized finish with contrasting bright silver machine cuts for a premium appearance
• 42-tooth rear sprocket for precise gearing selection

Vortex Racing is a U.S.-based manufacturer with a proven track record supplying top professional race teams across Motocross, Supercross, Road Racing, and Flat Track disciplines. The CAT5 series represents their benchmark aluminum rear sprocket, combining race-proven durability with the weight savings demanded by serious riders.