Vortex 454ZK-49 CAT5 Aluminum Rear Sprocket 525 Pitch 49-Tooth Black

The Vortex 454ZK-49 is a CAT5 aluminum rear sprocket featuring a 525 chain pitch and 49-tooth count, finished in black anodizing with contrasting silver machined accents. Engineered for performance-focused riders, this sprocket is purpose-built for the Kawasaki ZX-10R across all model years using the 525 pitch chain setup.

Key Features:

• Lightweight CAT5 aluminum construction — significantly reduces rotating mass compared to OEM steel sprockets for improved throttle response and acceleration
• 7075 T6 aluminum alloy — specially formulated per Vortex specifications for maximum strength and durability
• 100% CNC machined in the USA — manufactured to the tightest tolerances for a perfectly concentric fit
• Vortex patented saber tooth groove design — unique tooth profile reduces friction, improves power transfer efficiency, and extends sprocket longevity
• Black anodized finish with silver machined highlights — provides a clean, race-inspired appearance while resisting corrosion
• 525 chain pitch — compatible with standard 525-pitch chains
• 49 teeth — provides increased mechanical advantage for improved low-end acceleration

Vortex Racing has been a trusted supplier to professional race teams and performance riders for decades. The 454ZK series is engineered specifically for ZX-10R applications using the 525 pitch drivetrain, making it a direct bolt-on upgrade. Part number 454ZK-49 denotes the 454ZK sprocket pattern with a 49-tooth count.