At DMG Motorsports, we present the Vortex F5 Rear Aluminum Sprocket in Black Hardcoat, 41-Tooth (SKU 3-251K41) — a race-proven drivetrain upgrade built for riders who demand less rotating mass and more precise power delivery. Vortex sprockets are trusted throughout the sportbike community, and this F5 model swaps out your heavy stock steel sprocket for a lightweight, high-performance alternative that helps you dial in your gearing without sacrificing durability.

Every Vortex F5 rear sprocket is CNC machined from premium 7075 T6 aluminum, a grade chosen specifically for its exceptional strength-to-weight ratio. This isn't just about shedding weight — because that mass is rotating, every gram saved here has an outsized effect on how quickly your bike accelerates and changes direction. Vortex's manufacturing process holds tight tolerances for a perfectly concentric sprocket, which reduces drivetrain drag, frees up usable horsepower, and extends the working life of both the chain and the sprocket itself.

The Black Hardcoat finish isn't just cosmetic. Vortex hard anodizes the sprocket with a jet-black dye, then applies their proprietary F5 PTFE coating directly to the teeth after machining. This combination results in a surface with a much lower coefficient of friction than raw aluminum, along with added wear and heat resistance — meaning the sprocket runs cooler, cleaner, and lasts longer under hard use. Integrated mud-clearing grooves between the teeth also help keep debris from building up, so performance stays consistent whether you're on the street or the track.

Features:

• CNC machined from high-strength 7075 T6 aluminum for a lightweight, high-performance alternative to steel sprockets
• 41-tooth configuration lets you fine-tune final drive gearing to your riding style
• Hard anodized with a jet-black dye, then coated with Vortex's proprietary F5 PTFE for reduced friction and added lubricity
• PTFE hardcoat is wear- and heat-resistant, extending sprocket life over uncoated aluminum
• Precision CNC manufacturing delivers a perfectly concentric sprocket that reduces drivetrain drag
• Unique tooth profile lowers friction for smoother acceleration and deceleration
• Self-cleaning mud grooves between teeth help keep the sprocket free of dirt and grime
• Reduced rotating mass improves acceleration, handling, and overall response
• Vortex's patented sprocket design offers an attractive, distinctive look

Fitment