At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in Aluminum, 47-Tooth, 530 pitch, Black finish, built for Yamaha (840ZK-47) — a race-bred upgrade that swaps out your heavy OEM steel sprocket for a lighter, sharper-looking piece of drivetrain hardware. This CAT5 series sprocket is a favorite among riders who want proven performance and standout style in one component, and DMG Motorsports is proud to offer it as part of our lineup of trusted powersports upgrades.

Features:

• Anodized in color first, then CNC machined from 7075 aluminum to produce a trick colored sprocket with silver highlights
• Trusted by racing champions for its proven design, tight tolerances, and unique tooth design
• Machined from lightweight aerospace-grade aluminum, making it lighter and more appealing than OEM steel sprockets
• An aluminum sprocket is much lighter compared to OEM steel sprockets, leading to reduced rotating mass and improved acceleration and handling
• Features saber tooth grooves, with a unique tooth design that increases sprocket longevity
• 47-tooth, 530-pitch configuration finished in black with contrasting silver highlights
• Vortex part number 840ZK-47 / SKU 3-840ZK47, engineered specifically for Yamaha fitment