Vortex 436ZB-45 CAT5 Rear Aluminum Sprocket 45T Blue Anodized

The Vortex 436ZB-45 is a lightweight CAT5 rear aluminum sprocket featuring 45 teeth and a striking blue anodized finish with contrasting silver machine-cut highlights. Designed for performance-oriented riders who demand precision-engineered drivetrain components, this sprocket is 100% CNC manufactured in the USA to the tightest tolerances.

Vortex's CAT5 sprockets use a unique anodizing process applied before final CNC machining — the color finish is applied first, then the sweeps, mud grooves, and tooth faces are machined to bare aluminum, resulting in a vibrant flash of color with bright silver accents. The result is a sprocket that looks as good as it performs.

Key Features:

• 45-tooth rear sprocket for fine-tuned gear ratio adjustments
• Blue anodized finish with contrasting silver CNC-machined highlights
• Lightweight aluminum construction — significantly reduces rotating mass compared to OEM steel sprockets
• 100% CNC manufactured in the USA to race-tight tolerances
• Specially formulated aluminum alloy per Vortex specifications
• Saber tooth groove design — unique tooth profile engineered to increase sprocket longevity
• Vortex patented sprocket design for optimal chain engagement and wear characteristics
• Available in multiple colors (blue, red, gold, black) with matching silver machine cuts

The Vortex CAT5 series is trusted by professional and amateur racers across road racing, supercross, and motocross disciplines. Reducing rotating mass with an aluminum rear sprocket leads to improved acceleration response and more nimble handling — a direct performance upgrade over heavier OEM steel units.