At DMG Motorsports, we present the Vortex F5 Rear Sprocket 42T-520 in Black Hardcoat (Kawasaki fitment, PN 454K-42) — a race-proven, lightweight aluminum rear sprocket engineered to deliver reliable chain engagement and consistent power transfer through the hardest track sessions. Vortex built the F5 line for riders who demand more from their drivetrain, combining premium materials with a proprietary finishing process that keeps this sprocket running cleaner, cooler, and longer than standard replacements. Whether you're dialing in a gearing change or swapping out a worn sprocket, this bolt-on 520-pitch, 42-tooth sprocket drops in for a precise fit on compatible Kawasaki models.

Features:

• 7075 aluminum construction: Each sprocket is machined from 7075 T6 aluminum to a very high tolerance, delivering serious strength without excess weight
• 100% CNC machined in the USA: Lightweight F5 aluminum racing sprocket, 100% CNC manufactured in the USA using a specially formulated alloy per Vortex specifications
• Hard anodized jet black finish: After type 3 hard anodizing with a jet black dye, the sprocket gains a durable, race-ready black finish
• PTFE hardcoat lubricity: they then coat the sprocket with PTFE (Teflon type material) for added lubricity, resulting in an ultra tough, ultra light sprocket that stays cleaner and lasts longer
• Unique tooth design: Unique tooth design increases sprocket longevity, helping extend chain and sprocket service life
• Patented Vortex design: Vortex patented sprocket design is unlike any other sprocket
• Specs: 42-tooth, 520 chain pitch, black finish, designed for select Kawasaki models
• Trusted by champions on the street and the track

Fitment