At DMG Motorsports, we present the Vortex F5 Rear Sprocket 44T-520 Black Hardcoat (840AK-44) — a race-proven aluminum sprocket built for Yamaha riders who demand strength, low unsprung weight, and long-term durability from their drivetrain. Vortex has long been a favorite among champions in roadracing and beyond, and this F5 sprocket brings that same competition-grade engineering straight to your bike. Every sprocket is precision CNC machined in the USA from a specially formulated 7075 aluminum alloy, then hard anodized with a jet black dye and finished with a PTFE topcoat for extra lubricity and wear resistance, giving you a sprocket that stays cleaner and lasts longer than standard aluminum sprockets.

Features:

• CNC machined from 7075 aluminum for outstanding strength combined with light weight
• Hard anodized with a jet black dye for a durable, race-ready finish
• PTFE coated for added lubricity, wear resistance, and durability
• Unique tooth design engineered to increase sprocket longevity
• 100% CNC manufactured in the USA to Vortex specifications
• 44-tooth, 520-pitch configuration designed for Yamaha applications
• Trusted by champions in professional roadracing competition