Vortex 528AKV4-45 Aluminum Rear Sprocket Pitch Hardcoat Sprockets - 528 45-Tooth

The Vortex 528AKV4-45 is a 45-tooth, 528-pitch aluminum rear sprocket featuring Vortex's hardcoat (AK) black anodized finish for enhanced durability and corrosion resistance. Designed for performance street and racing applications, this sprocket delivers a meaningful weight reduction over OEM steel units, helping to reduce rotating mass for improved throttle response and acceleration.

Key Features:

• Chain Pitch: 528
• Tooth Count: 45 teeth
• Material: Lightweight aluminum, machined from a specially formulated alloy per Vortex specifications
• Finish: Black hardcoat anodized — provides superior corrosion resistance and extended service life over standard silver anodize
• Manufacturing: 100% CNC machined in the USA
• Tooth Design: Vortex patented tooth profile engineered to maximize sprocket longevity and chain engagement
• Weight Savings: Significantly lighter than stock steel sprockets, reducing rotating mass for improved acceleration and handling response

The Vortex aluminum rear sprocket line is a trusted choice among racers and performance riders worldwide. The AK hardcoat finish makes this an ideal upgrade for riders seeking both the weight savings of aluminum and a more durable surface treatment than standard anodizing. Pair with a quality 528-pitch chain and compatible front sprocket for a complete drivetrain upgrade.