Vortex 505ZK-43 Black 43-Tooth 428-Pitch Rear Sprocket

The Vortex 505ZK-43 is a black, 43-tooth, 428-pitch rear sprocket precision-engineered for motorcycle applications demanding lightweight performance and long-lasting durability. Part of Vortex's CAT5 aluminum sprocket series, it is 100% CNC manufactured in the USA from a specially formulated aluminum alloy developed to Vortex's exacting specifications.

Key Features:

• 428 Pitch — designed to work with standard 428-pitch drive chains
• 43 Teeth — provides optimized gear ratio for acceleration and top-speed balance
• CAT5 Lightweight Aluminum Construction — reduces rotating mass for improved throttle response and overall performance
• 100% CNC Manufactured in the USA — precise tolerances for consistent fit and engagement
• Satin Black Finish — electro-plated to resist corrosion and maintain appearance
• Vortex Patented Tooth Design — unique profile increases sprocket longevity and reduces chain wear
• Specially Formulated Alloy — developed per Vortex specifications for strength-to-weight performance

The Vortex 505ZK-43 rear sprocket is an ideal upgrade or direct replacement for riders looking to reduce unsprung rotating weight while maintaining reliable drivetrain performance. Its durable black finish and race-proven construction make it a trusted choice for both street and track use.