At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket 41T-520 in Black (435ZK-41) — a race-proven, lightweight aluminum sprocket built for riders who want reduced rotating mass, sharper acceleration, and a distinctive look on the track or street. Fitting a wide range of Kawasaki, Suzuki, and Yamaha models running a 520 chain conversion, this CAT5 sprocket is manufactured entirely in the USA to exacting tolerances, giving you a durable, high-performance upgrade over heavier OEM steel sprockets.

Vortex's CAT5 series is famous for its process: the sprocket is anodized in color first, then CNC machined from 7075 aluminum, which reveals bright silver highlights against the black finish for a truly trick, one-of-a-kind appearance. Beyond the looks, the sprocket's unique tooth design and tight manufacturing tolerances help extend the life of both the chain and sprocket while freeing up usable horsepower. It's the same design philosophy that has made Vortex a trusted name among champions in road racing paddocks worldwide.

Features:

• Anodized FIRST then CNC machined from 7075 aluminum for a trick colored sprocket with silver highlights
• 100% CNC manufactured in the USA to the tightest tolerances
• Specially formulated aluminum alloy per Vortex specifications for strength and light weight
• Unique tooth design increases sprocket longevity and improves chain hold and release
• Lightweight aluminum construction reduces rotating mass for quicker acceleration and improved handling versus heavier OEM steel sprockets
• 41-tooth, 520-pitch sizing designed for Kawasaki, Suzuki, and Yamaha 520 conversions
• Black anodized finish with bright silver machined highlights
• Vortex's patented sprocket design, trusted and tested by champions in professional racing

Fitment