At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket (251ZK-45) — a 45-tooth, 530-pitch aluminum rear sprocket engineered for Honda applications and built for riders who demand race-level performance without sacrificing style. Vortex sprockets have earned their reputation on the track, and this CAT5 model brings that same championship-proven design straight to your bike. Machined from premium 7075 aluminum, it's anodized first and then CNC machined, revealing a striking black finish with contrasting silver highlights that looks as fast as it performs.

Every Vortex CAT5 sprocket is 100% CNC manufactured in the U.S.A. using a specially formulated alloy engineered to Vortex specifications, giving you a component that's both lightweight and durable. The unique tooth design isn't just for looks — it's built to keep the chain running clean and true while reducing rotating mass, improving acceleration, handling, and overall drivetrain efficiency compared to a heavier OEM steel sprocket.

Features:

• Anodized first, then CNC machined from 7075 aluminum for a trick colored finish with silver highlights
• Black finish with contrasting silver machined accents
• Unique tooth design helps keep the chain and sprocket running clean and extends longevity
• 45-tooth, 530-pitch configuration designed for Honda fitment
• Lightweight aluminum construction reduces rotating mass for improved acceleration and handling
• 100% CNC manufactured in the U.S.A. from a specially formulated alloy per Vortex specifications
• Trusted by champions - the same proven Vortex design used in professional racing

Fitment