At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in 41-tooth, 520 pitch, black finish for Yamaha applications (PN 840AZK-41) — a race-proven upgrade that swaps out your heavy OEM steel sprocket for a lightweight, striking aluminum piece built to Vortex's exacting racing standards. This sprocket is engineered to shave rotating mass for quicker acceleration and sharper handling, while its bold anodized-then-machined finish gives your bike a track-ready look that turns heads in the paddock or on the street.

Features:

• Anodized in color first, then CNC machined from 7075 aluminum to produce a trick colored sprocket with silver highlights
• Saber tooth grooves; unique tooth design increases sprocket longevity
• 100% CNC manufactured in the U.S.A.
• Specially formulated alloy per Vortex specifications
• Aluminum construction is much lighter compared to OEM steel sprockets, leading to reduced rotating mass and allowing for improved acceleration and handling
• Vortex's patented sprocket design is unlike any other sprocket — trusted by champions on the track
• 41-tooth, 520 pitch configuration in a durable black finish, designed for Yamaha models using 520 chain conversion