Vortex 438ZK-51 CAT5 Aluminum Rear Sprocket 51 Tooth 530 Pitch Black

The Vortex 438ZK-51 CAT5 rear sprocket delivers race-proven performance with a lightweight aluminum construction that reduces rotating mass for improved acceleration and handling. This 51-tooth sprocket features a 530 pitch chain pattern designed for Yamaha R1, Suzuki GSX-R1000 (2009-2018), and GSX-R1000 (2020 with 530 conversion) applications.

Key Features:

• Patented CAT5 (Computer Aided Technology) design with weight-reducing cutouts
• Black anodized finish with machined accents for durability and style
• 7075-T6 aerospace-grade aluminum construction
• Precision CNC machined for perfect fitment and balance
• Hardened teeth for extended wear resistance
• 51 teeth for optimized gearing options
• 530 pitch chain compatibility

Vortex CAT5 sprockets are engineered to meet the demanding needs of track riders and street enthusiasts alike, offering an ideal balance of strength, weight savings, and longevity. The distinctive design not only reduces weight but also helps dissipate heat during aggressive riding conditions.