At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket 47T-520 in Black for Yamaha (840AZK-47) — a race-bred rear sprocket built for riders who want proven performance and a distinctive look on their drivetrain. Vortex has spent years supplying top professional race teams, and this CAT5 sprocket carries that pedigree straight to your Yamaha, combining lightweight strength with a sharp, contrasting finish that stands out on the track or the street.

Features:

• Anodized in color first, then CNC machined from 7075 aluminum for a trick colored sprocket with sharp silver highlights
• 100% CNC manufactured in the USA to tight tolerances for consistent, reliable performance
• Specially formulated alloy per Vortex specifications for a strong balance of light weight and durability
• Unique patented Vortex tooth design that increases sprocket longevity and improves power transfer
• 47-tooth, 520-pitch configuration designed as a direct fit for compatible Yamaha models
• Trusted and track-tested by champions across professional Motocross, Supercross, Road Racing, and Flat Track disciplines
• Bold black finish with silver machined accents for an aggressive, custom appearance