Vortex 505ZB-40 Blue 40-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 505ZB-40 is a 40-tooth, 520-pitch aluminum rear sprocket finished in an eye-catching blue anodized coating. Engineered for street and track riders who demand lightweight performance without sacrificing durability, this sprocket is part of Vortex's proven CAT5 aluminum rear sprocket lineup — 100% CNC manufactured in the USA to exacting tolerances.

Key Features:

• Chain Pitch: 520
• Tooth Count: 40 teeth
• Color: Blue anodized aluminum
• Material: Lightweight CAT5 aluminum alloy per Vortex specifications
• 100% CNC machined in the USA for precise fit and finish
• Patented Vortex tooth design for extended sprocket longevity
• Weight-reducing cutouts minimize rotating mass for improved throttle response
• Reduces unsprung weight compared to OEM steel sprockets

Vortex rear sprockets are a top choice for riders looking to fine-tune their gear ratio for improved acceleration, reduce drivetrain weight, or replace a worn OEM sprocket with a premium upgrade. The 520-pitch sizing makes this sprocket compatible with a wide range of sport and performance motorcycles running a 520 chain.