Vortex 528ZR-38 Red 38-Tooth CAT5 Aluminum Rear Sprocket

The Vortex 528ZR-38 is a high-performance 38-tooth rear sprocket designed for serious riders who demand both quality and style. Part of Vortex's acclaimed CAT5 line, this lightweight aluminum racing sprocket is precision-engineered to deliver exceptional performance and longevity.

Key Features:

• Lightweight CAT5 aluminum construction for reduced unsprung weight
• 100% CNC manufactured in the USA for precise tolerances
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Saber tooth grooves with unique patented tooth design that increases sprocket longevity
• Red anodized finish with contrasting silver machine cuts for a premium appearance
• Compatible with 528/530 pitch chains

Vortex sprockets are trusted by professional racing teams and riders worldwide. The CAT5 aluminum construction is machined from aerospace-grade material to be significantly lighter and more visually appealing than OEM steel sprockets, while maintaining the durability needed for demanding applications. The patented tooth design helps distribute chain wear more evenly, extending the life of both the sprocket and chain.