Vortex 337CZK-39 CAT5 Rear Sprocket 39-Tooth 520 Pitch Black

The Vortex 337CZK-39 is a high-performance CAT5 rear sprocket designed for sport and racing motorcycles. This lightweight aluminum sprocket features 39 teeth with 520 pitch, making it ideal for riders seeking optimal power delivery and reduced rotating mass.

Key Features:

• 39-tooth configuration for balanced acceleration and top speed
• 520 pitch for lightweight performance applications
• 100% CNC-machined aluminum construction in the USA
• Black zinc finish (CZK) provides corrosion resistance and aggressive styling
• Vortex patented tooth profile design increases sprocket longevity
• Specially formulated aluminum alloy to Vortex specifications
• Lightweight design reduces rotating mass for improved acceleration
• Compatible with 520 pitch chains

Vortex CAT5 sprockets are precision-engineered for racers and performance enthusiasts who demand quality and durability. The unique tooth profile design distributes load more evenly across the chain, extending the life of both sprocket and chain while maintaining consistent performance.