At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in Aluminum, 43T, 520 pitch, Blue finish for Honda (Part# 251AZB-43) — a race-proven drivetrain upgrade built to shed rotating mass without sacrificing durability. Vortex has spent over a decade manufacturing top-tier racing components trusted by professional teams, and this CAT5 sprocket is a perfect example of that pedigree, combining eye-catching color with genuine performance benefits over a heavy OEM steel sprocket.

Each sprocket in the CAT5 line is anodized in color first, then CNC machined from 7075 aluminum, exposing bright silver highlights against the vivid blue finish for a striking, track-ready look. Beyond aesthetics, the patented tooth design and tight manufacturing tolerances are engineered to hold up to the demands of both street and track riding, making this a favorite among racers who refuse to compromise on style or performance.

Features:

• Anodized FIRST, then CNC machined from 7075 aluminum for a trick colored sprocket with bright silver highlights
• Lightweight aluminum construction reduces rotating mass for improved acceleration and handling compared to OEM steel sprockets
• Unique, patented tooth design increases sprocket longevity and is unlike any other sprocket on the market
• Specially formulated alloy manufactured to Vortex specifications for consistent quality and tight tolerances
• Trusted and proven by racing champions across Road Racing, Motocross, Supercross, and Flat Track disciplines
• 43 tooth, 520 pitch configuration finished in blue anodizing designed to fit Honda applications
• Direct bolt-on replacement offering a lighter, more responsive alternative to a factory steel sprocket

Fitment