At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket 43T-520 in Black for Yamaha (Part# 840AZK-43) - a race-proven upgrade that combines aggressive style with serious performance. Vortex sprockets are anodized in color first and then CNC machined from premium 7075 aluminum, revealing a striking black finish with contrasting silver highlights that looks fast even standing still. This lightweight aluminum design sheds rotating mass compared to bulky OEM steel sprockets, helping your Yamaha accelerate quicker and handle more precisely, whether you're carving up the track or the street. Built in the USA to Vortex's own specially formulated alloy standards and backed by a patented tooth design found on machines ridden by champions, this sprocket is a trusted choice for riders who demand both looks and durability.

Features:

• Anodized in color first, then CNC machined from 7075 aluminum for a trick black finish with bright silver highlights
• Lightweight aluminum construction reduces rotating mass versus OEM steel sprockets for improved acceleration and handling
• 100% CNC manufactured in the USA to tight tolerances
• Specially formulated alloy engineered per Vortex specifications for strength and durability
• Unique, patented tooth design increases sprocket longevity and is unlike any other sprocket on the market
• 43-tooth, 520-pitch configuration designed for select Yamaha models
• Trusted by champions on the track and street