Vortex 337ZK-48 CAT5 Rear Sprocket Black Aluminum 520 48-Tooth

The Vortex 337ZK-48 is a CAT5 rear aluminum sprocket featuring a 48-tooth count and 520 chain pitch, finished in a striking black anodized color with contrasting silver machined highlights. Built for riders who demand precision and durability, this sprocket is part of Vortex's renowned CAT5 lineup — trusted by racers and performance enthusiasts worldwide.

Key Features:

• Lightweight CAT5 aluminum construction — reduces rotating mass for improved throttle response and acceleration
• 100% CNC manufactured in the USA — machined to precise tolerances for perfect concentricity
• Specially formulated alloy per Vortex specifications — engineered for optimal strength-to-weight ratio
• Saber tooth grooves — Vortex's patented unique tooth design increases sprocket longevity
• Black anodized finish with silver machine-cut highlights — anodized first, then CNC machined for a distinctive two-tone appearance
• 520 chain pitch — compatible with standard 520 drive chains
• 48-tooth rear sprocket — provides tunable gearing for your specific riding application

The Vortex CAT5 sprocket line is a benchmark in motorcycle drivetrain performance. The anodize-first, machine-second manufacturing process results in a durable color layer with bright silver accents on the swept surfaces — giving your drivetrain a race-ready look to match its performance credentials.