At DMG Motorsports, we present the Vortex F5 Rear Sprocket 42T-530 in Black Hardcoat (840K-42) — a race-proven aluminum sprocket built for Yamaha riders who demand less rotating mass and more durability where it counts. Vortex has long been a favorite among racers, and this F5 sprocket continues that legacy with a specially formulated 7075 aluminum alloy, precision CNC machining, and a jet-black PTFE hardcoat finish that looks as tough as it performs. Whether you're chasing lap times at the track or simply want a lighter, longer-lasting drivetrain component on the street, this sprocket delivers the strength-to-weight advantage that has made Vortex a trusted name in performance sprockets.

Features:

• CNC machined from 7075 aluminum for exceptional strength and light weight
• 100 percent CNC manufactured to Vortex's specially formulated alloy specifications
• Hard anodized (type 3) with a jet black dye for a durable, corrosion-resistant finish
• PTFE hard-coat applied over the anodizing for added lubricity, wear resistance, and easier cleaning
• Unique tooth design engineered to increase sprocket longevity
• Vortex's patented sprocket design reduces rotating mass versus OEM steel sprockets, aiding acceleration and handling
• 42-tooth, 530 pitch configuration designed for Yamaha fitment
• Trusted by champions on the track and street alike