Vortex 628ZR-57 CAT5 Aluminum Rear Sprocket 520 Pitch 57T

The Vortex 628ZR-57 is a CAT5 series aluminum rear sprocket featuring a 520 pitch and 57 teeth, built for motorcycle riders who demand precision-engineered drivetrain components. Manufactured in the USA, this sprocket is part of Vortex Racing's renowned CAT5 lineup — anodized first, then CNC machined to reveal signature contrasting silver highlights.

Key Features:

• 520 Pitch, 57-Tooth rear sprocket for precise gearing fitment
• CAT5 series — anodized first, then CNC machined from specially formulated aluminum alloy per Vortex specifications
• Distinctive anodized finish with contrasting silver machine-cut accents
• Unique patented tooth design increases sprocket longevity and improves chain hold and release
• 100% CNC manufactured in the USA for tight tolerances and consistent quality
• Lightweight construction reduces rotating mass for improved throttle response and acceleration
• Available in multiple color options to complement your motorcycle's aesthetic

Vortex Racing has been a trusted name in the motorcycle racing and performance community for decades. The CAT5 rear sprocket delivers a premium blend of style, durability, and performance — making it an ideal upgrade over stock gearing for both street and track use.