Vortex 527ZKV4-45 CAT5 Black Aluminum Rear Sprocket 530 Pitch 45T

The Vortex 527ZKV4-45 is a CAT5 black anodized aluminum rear sprocket featuring a 530 chain pitch and 45 teeth. Engineered for sport and performance motorcycle applications, this sprocket delivers a significant weight savings over stock steel units, reducing rotating mass for improved throttle response and acceleration.

Key Features:

• 100% CNC manufactured in the USA to tight tolerances for precise fit and consistent performance
• Specially formulated aluminum alloy per Vortex specifications for optimal strength-to-weight ratio
• Patented CAT5 tooth design with unique geometry that increases sprocket longevity and reduces chain wear
• Black color anodized finish applied selectively — excluding sweeps, mud grooves, and teeth — for a distinctive two-tone appearance
• 530 chain pitch compatible with OEM and aftermarket 530-series chains
• 45-tooth rear sprocket count for performance-tuned gearing
• Lightweight construction reduces rotating mass for improved acceleration and handling response

Vortex sprockets are a popular choice among street riders and track enthusiasts alike. The CAT5 series combines race-proven durability with aggressive styling, making the 527ZKV4-45 an ideal direct upgrade over worn or heavy OEM sprockets.