Vortex 254ZB-49 Aluminum Rear Sprocket 49T 520-Pitch Silver

The Vortex 254ZB-49 is a lightweight, 49-tooth, 520-pitch aluminum rear sprocket designed as a direct-fit performance replacement for street and track riding. Built to Vortex Racing's exacting standards, this sprocket delivers a measurable reduction in rotating mass compared to OEM steel sprockets, contributing to improved throttle response and acceleration.

Key Features:

• 49-Tooth / 520-Pitch — fits applications using standard 520-pitch drive chain
• CNC Machined in the USA — 100% precision-machined to tight tolerances for consistent fit and performance
• 7075 Aerospace-Grade Aluminum — specially formulated alloy per Vortex specifications for maximum strength-to-weight ratio
• Silver Anodized Finish — clear-coat anodizing helps resist oxidation and corrosion
• Patented Vortex Tooth Design — unique tooth profile engineered for increased sprocket longevity and smooth chain engagement
• Lightweight Construction — significantly lighter than stock steel sprockets, reducing rotating mass for improved acceleration and handling

Vortex aluminum sprockets are the preferred choice for road racing, track days, and performance street riding. For best results, chain and sprocket should be cleaned and inspected every 300–600 miles on street bikes to maximize service life. This sprocket is sold individually and is intended for use with a compatible 520-pitch chain.