Vortex 454ZK-42 CAT5 Aluminum Rear Sprocket 42T 525 Pitch Black

The Vortex 454ZK-42 is a CAT5 series aluminum rear sprocket featuring 42 teeth and 525 chain pitch. Engineered for performance-focused riders who demand lightweight, durable drivetrain components, this sprocket is built to race-proven Vortex standards.

Key Features:

• Lightweight CAT5 aluminum construction — reduces rotating mass for improved acceleration and throttle response
• 100% CNC machined in the USA — precision manufacturing ensures consistent fit and performance
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Black anodized finish — corrosion-resistant coating with machined accent highlights
• Vortex patented tooth profile — unique saber tooth groove design extends sprocket longevity and improves chain engagement
• 525 chain pitch — compatible with 525 drive chains
• 42 teeth — OEM-equivalent tooth count for balanced acceleration and top speed
• ZK carrier pattern — fits ZX10 all model years

Cross-reference part numbers: 454ZK-42, 454-42. The Vortex 454ZK-42 is the preferred choice of racers and performance street riders seeking a direct, high-quality replacement rear drive sprocket.