Vortex 775ZB-40 CAT5 Black Hardcoat Aluminum Rear Sprocket 40-Tooth

The Vortex 775ZB-40 is a 40-tooth, CAT5 aluminum rear sprocket finished in Vortex's PTFE black hardcoat — a treatment that bonds directly to the aluminum substrate to create a harder, more durable surface with reduced friction. Designed and manufactured in the USA, this sprocket is a proven choice for sport bike riders and racers seeking a lightweight, performance-oriented alternative to a steel OEM sprocket.

Key Features:

• PTFE Black Hardcoat Finish: Bonded directly to the aluminum for enhanced durability, corrosion resistance, and reduced friction compared to standard anodizing
• 7075-T6 Billet Aluminum Construction: Aerospace-grade alloy provides exceptional strength-to-weight ratio, reducing unsprung and rotating mass
• 100% CNC Machined: Manufactured to the tightest tolerances for precise chain engagement and consistent performance
• Patented Saber Tooth Groove Design: Vortex's unique tooth geometry promotes longer sprocket life and smoother chain wear
• 40 Teeth: Direct replacement tooth count for compatible applications
• Race-tested and trusted by professional AMA and world-championship competitors

Vortex sprockets are anodized first, then CNC machined to reveal silver highlights through the coating — but the 775ZB black hardcoat version delivers a stealthy all-black appearance with maximum surface hardness. Whether you're chasing lap times on the track or looking for a high-quality street upgrade, the Vortex 775ZB-40 delivers proven performance at a competitive weight savings over steel alternatives.