At DMG Motorsports, we present the Vortex 452A-42 Aluminum Rear Sprocket — a 42-tooth, 520-pitch silver sprocket built for Kawasaki riders who demand race-proven performance without sacrificing durability. Vortex has earned its reputation as the "Standard" in the race industry, and this sprocket is a perfect example why: it's engineered to shed rotating mass while holding up to the abuse of aggressive acceleration, hard launches, and repeated shifts. Whether you're chasing lap times at the track or simply want lighter, crisper throttle response on the street, this sprocket delivers the strength-to-weight ratio that has made Vortex a favorite among champions and everyday riders alike.

Machined entirely in-house from premium aircraft-grade aluminum, the 452A-42 is designed as a direct 520-pitch replacement or conversion sprocket, dropping rotating weight compared to a heavier OEM steel sprocket for quicker acceleration and improved handling. Its distinctive saber tooth groove pattern isn't just for looks — the unique tooth design is engineered to increase chain and sprocket longevity under hard use. Finished in a silver anodized coating, it resists corrosion while giving your Kawasaki's drivetrain a clean, race-ready look.

Features:

• 42-tooth, 520-pitch aluminum rear sprocket in silver finish
• CNC machined from 7075 high-strength aircraft-grade aluminum for maximum strength at minimal weight
• 100% CNC manufactured to Vortex's specially formulated alloy specifications
• Unique saber tooth groove design increases sprocket and chain longevity
• Vortex's patented sprocket geometry, unlike any other sprocket on the market
• Silver anodized finish helps resist corrosion
• Lighter than OEM steel sprockets, reducing rotating mass for improved acceleration and handling
• Designed as a direct fit or conversion option for 520-size chain and sprocket setups on compatible Kawasaki models
• Trusted by champions and proven in professional road racing competition

Fitment