Vortex 775BZK-49 520 CAT5 Aluminum Rear Sprocket 49T Black

The Vortex 775BZK-49 is a 520-pitch, 49-tooth CAT5 aluminum rear sprocket finished in black anodize. Engineered for performance riders who demand reduced rotating mass without sacrificing reliability, this sprocket is a direct upgrade over heavier OEM steel units.

Key Features:

• Lightweight aluminum construction — significantly reduces rotating mass compared to stock steel sprockets for improved throttle response and acceleration
• 520 chain pitch — compatible with standard 520-pitch drive chains
• 49 teeth — adds low-end torque and quicker acceleration compared to smaller-tooth sprockets
• 100% CNC manufactured in the USA — machined to tight tolerances using a specially formulated alloy per Vortex specifications
• Black anodized finish — provides corrosion resistance and a distinctive two-tone machined appearance
• Vortex patented tooth design — unique profile increases sprocket longevity and promotes smooth chain engagement

Vortex Racing sprockets are the trusted choice of professional race teams and performance street riders worldwide. The CAT5 series combines race-proven durability with the weight savings that aluminum provides, making it equally at home on the track or on the street.