At DMG Motorsports, we present the Vortex CAT5 Rear Sprocket in Black - 46 Tooth, 525 pitch, built for BMW applications and engineered for riders who demand race-grade performance without sacrificing durability. This sprocket is part of Vortex's championship-proven CAT5 lineup, a favorite among club racers and track day enthusiasts who want a lighter, stronger alternative to OEM steel sprockets. Part number 193ZK-46 delivers the exact fitment and gearing you need to dial in acceleration and top-end speed on your BMW.

What sets the CAT5 series apart is its unique manufacturing process. The Vortex CAT5 Series Rear Sprockets are anodized in color FIRST then CNC machined from 7075 aluminum, resulting in a striking black finish with contrasting silver highlights where the material is machined away. This isn't just about looks - the process showcases the precision of every cut while keeping the sprocket's core strength intact. Racing Champions trust the proven design of the CAT5 Vortex Aluminum Sprocket because of its tight tolerances and unique tooth design, making it a dependable upgrade for street and track use alike.

Vortex's saber tooth grooves and patented tooth geometry are engineered to increase sprocket longevity and improve chain engagement, while the lightweight 7075 aluminum construction reduces rotating mass for quicker acceleration and snappier throttle response. Every CAT5 sprocket is manufactured entirely in the USA to Vortex's own specially formulated alloy specifications, ensuring consistent quality control from raw material to finished part.

Features:

• Anodized FIRST then CNC machined from 7075 aluminum for a trick colored finish with silver highlights
• 46 tooth count, 525 chain pitch, designed for BMW fitment
• Unique Vortex tooth design with saber tooth grooves increases sprocket longevity
• Lightweight aluminum construction reduces rotating mass for improved acceleration
• 100% CNC manufactured to tight tolerances using a specially formulated Vortex alloy
• Vortex's patented sprocket design, trusted by racing champions
• Black anodized finish with contrasting silver machined highlights
• Part Number: 193ZK-46 / SKU: 3-193ZK46

Fitment