Vortex 438ZB-49 CAT5 Aluminum 530-Pitch 49-Tooth Rear Sprocket Blue

The Vortex 438ZB-49 is a 49-tooth, 530-pitch rear drive sprocket machined from CAT5 aluminum — a specially formulated alloy developed to Vortex's own specifications. Anodized in blue with contrasting silver machine cuts, this sprocket delivers a precision racing look while shedding significant weight over a stock steel unit.

Key Features:

• CAT5 aluminum construction — lightweight, high-strength alloy formulated to Vortex specifications
• 100% CNC manufactured in the USA for tight tolerances and consistent quality
• Patented Vortex tooth profile — unique saber-tooth groove design extends sprocket life and improves chain engagement
• 530 chain pitch — compatible with standard 530-series drive chains
• 49 teeth — rear sprocket position
• Blue anodized finish with contrasting silver machine cuts; also available in black, red, and silver

Vortex rear sprockets are a popular upgrade for sportbike riders seeking reduced unsprung and rotational mass without sacrificing durability. The patented tooth geometry distributes load more evenly across the chain, helping both components last longer under hard acceleration and track use.