At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in Black, 45-Tooth, 520-Pitch (251AZK-45) for Honda applications — a race-bred upgrade that swaps out your heavy OEM steel sprocket for a lightweight, aggressive-looking piece of Vortex engineering. Since 1995, Vortex has produced the CAT5 sprocket design, which has become the industry's most iconic sprocket. This sprocket is CNC manufactured to the tightest tolerances with a unique tooth design, using color anodizing which excludes the sweeps, mud grooves and teeth for a flash of color, giving it that unmistakable black-with-silver-highlight look while keeping the rotating mass to a minimum. Whether you're chasing lap times or just want your Honda to look as fast as it rides, this Vortex CAT5 sprocket delivers proven performance and style backed by a brand trusted by champions.

Features:

• Anodized first, then CNC machined from 7075 aluminum for a trick colored finish with bright silver highlights
• Lightweight CAT5 aluminum racing sprocket for reduced rotating mass versus heavy OEM steel
• 100% CNC manufactured in the U.S.A. using a specially formulated alloy per Vortex specifications
• Saber tooth grooves; unique tooth design increases sprocket longevity
• Vortex patented sprocket design is unlike any other sprocket
• Aluminum construction is much lighter compared to OEM steel sprockets, leading to reduced rotating mass and improved acceleration and handling
• Black finish (251AZK-45), 45-tooth, 520-pitch, designed to fit specific Honda models
• Backed by Vortex's championship-winning racing heritage

Fitment