Vortex 438ZB-39 CAT5 Aluminum Rear Sprocket 530 Pitch 39 Tooth Blue

The Vortex 438ZB-39 is a lightweight CAT5 aluminum racing sprocket designed as a high-performance alternative to heavy stock steel sprockets. This rear sprocket features 530 pitch with 39 teeth and a distinctive blue anodized finish.

Key Features:

• Constructed from 7075 T6 aluminum, the best grade material for lightweight durability
• 100% CNC machined in the USA to the tightest tolerances
• Specially formulated alloy per Vortex specifications
• Features patented saber tooth grooves and unique tooth design that increases sprocket longevity
• CAT5 color anodized finish with contrasting silver machined accents
• CNC manufacturing creates a perfectly concentric sprocket every time, which frees horsepower and extends chain and sprocket life

Reducing rotating mass on drive components considerably improves acceleration and allows for custom gearing changes. The perfected tooth design has less drag and reduces friction for better acceleration and deceleration.