Vortex 151ZK-35 CAT5 420 Pitch 35-Tooth Aluminum Rear Sprocket Black

The Vortex 151ZK-35 is a CAT5 aluminum rear sprocket featuring a 420 chain pitch and 35-tooth count, finished in a black anodized coating with contrasting silver machined highlights. Designed for mini-bikes, pit bikes, and small-displacement motorcycles, this sprocket delivers a significant weight savings over OEM steel units.

Key Features:

• 420 Pitch — compatible with standard 420 drive chains
• 35 Teeth — optimized tooth count for performance gearing
• Black Anodized Finish — durable corrosion-resistant coating with silver machined accents
• Lightweight Aluminum Construction — reduces rotating mass for improved acceleration and throttle response
• 100% CNC Machined in the USA — precision-manufactured to tight tolerances for a perfectly concentric fit
• Patented Vortex Tooth Design — saber tooth grooves and unique tooth profile maximize sprocket longevity and minimize chain wear
• Specially Formulated Alloy — material developed to Vortex Racing specifications for optimal strength-to-weight ratio

Vortex Racing has been a trusted name in motorcycle racing components for over 15 years, manufacturing sprockets to the highest quality standards for motocross, supercross, road racing, and minibike applications. The CAT5 series represents their performance aluminum rear sprocket lineup built for riders who demand race-proven drivetrain components.