Vortex 838AZK-43 CAT5 Aluminum Rear Sprocket Black 43-Tooth 520-Pitch

The Vortex 838AZK-43 is a CAT5 lightweight aluminum rear sprocket delivering race-proven performance for street and track riders. Featuring 43 teeth and designed for 520-pitch chain, this sprocket is finished in a striking black anodize with contrasting silver machined accents for a premium look that resists corrosion.

Key Features:

• 100% CNC manufactured in the USA to the tightest tolerances
• Specially formulated CAT5 aluminum alloy per Vortex specifications — lightweight for reduced rotating mass
• Black anodized finish with contrasting silver machined cuts for corrosion resistance and style
• Vortex patented unique tooth design increases sprocket longevity and chain retention
• 43-tooth, 520-pitch rear sprocket configuration
• Improves acceleration, deceleration, and directional changes compared to heavier OEM steel sprockets

Vortex Racing has been manufacturing top-quality motorcycle racing components since 1995, trusted by professional race teams worldwide. The 838AZK-43 rear sprocket is a direct bolt-on upgrade that reduces unsprung and rotating mass for a noticeable improvement in throttle response and overall drivetrain feel.