At DMG Motorsports, we present the Vortex F5 Rear Sprocket, Aluminum 45T-530, Black Hardcoat for Yamaha (840K-45) — a race-proven drivetrain component built to shed weight without sacrificing durability. Vortex has long been a favorite among racers looking to drop unsprung weight while keeping shift precision and chain life on point, and this F5 sprocket delivers exactly that with its hard-anodized black finish and PTFE topcoat for smooth, long-lasting performance.

Features:

• CNC machined from 7075 aluminum for amazing strength and light weight
• Hard anodized with a jet black dye
• PTFE coated for added lubricity and durability
• Unique tooth design engineered for increased sprocket longevity
• 45-tooth, 530 pitch configuration designed to fit Yamaha applications
• Trusted by champions in professional and amateur racing alike