At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in Black, 44 Tooth, 530 Pitch (PN 251ZK-44) — a race-bred rear sprocket built for Honda sportbikes that demand less rotating mass and more confidence-inspiring feel at every corner exit. Vortex has long been a favorite among racers and trackday riders who want a drivetrain component that looks as sharp as it performs, and this CAT5 sprocket delivers both in one package.

Unlike heavy OEM steel sprockets, this Vortex piece is anodized first and then CNC machined from premium 7075 aluminum, a process that strips away weight while exposing bright silver highlights across the machined surfaces for a distinctive, race-inspired look. That reduction in rotating mass translates directly into snappier acceleration and lighter handling, letting your Honda change direction and pick up revs with less effort from the engine.

Beyond the finish, the CAT5 series is engineered with a unique tooth design that Vortex has refined through years of racing feedback, helping the chain ride smoother and extending the working life of the sprocket under hard use. It's this combination of proven engineering and eye-catching style that has made Vortex sprockets a trusted choice among champions on the track and serious enthusiasts on the street alike.

Features:

• 44-tooth, 530-pitch rear sprocket engineered for Honda applications
• Anodized first, then CNC machined from lightweight 7075 aluminum
• Black anodized finish with contrasting bright silver machined highlights
• Unique CAT5 tooth design refined through racing use for smoother chain engagement
• Reduced rotating mass compared to OEM steel sprockets for quicker acceleration and lighter handling
• Trusted and proven by champions in professional roadracing
• Direct-fit replacement for specified Honda models; verify fitment before ordering

Fitment