At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket, 45-Tooth, 525 Pitch in Black for BMW (part number 193ZK-45) — a race-bred aluminum rear sprocket built to upgrade your bike's drivetrain with a striking look and proven performance. This sprocket is part of Vortex's renowned CAT5 lineup, a favorite among competitive riders who demand precision, durability, and style from their drivetrain components.

What sets the CAT5 series apart is its unique manufacturing process: each sprocket is anodized in color first, then CNC machined from 7075 aluminum, which reveals bright silver highlights against the black finish for a trick, two-tone look that stands out on the track or street. Beyond the aesthetics, this sprocket is engineered for real performance gains, offering a lightweight alternative to steel sprockets without sacrificing strength.

Features:

• Anodized in color FIRST, then CNC machined from premium 7075 aluminum for a trick colored finish with contrasting silver highlights
• Lightweight CAT5 aluminum racing sprocket built to reduce unsprung weight
• 100% CNC manufactured in the USA to tight tolerances
• Specially formulated alloy engineered per Vortex specifications
• Unique tooth design that increases sprocket longevity and improves power delivery
• Vortex's patented sprocket design, unlike any other sprocket on the market
• Trusted by champions and proven in competitive racing applications
• 45-tooth, 525 pitch configuration in black, designed to fit compatible BMW motorcycle models

Fitment