Vortex 193BZK-40 Black 40-Tooth 525-Pitch Aluminum Rear Sprocket

The Vortex 193BZK-40 is a 40-tooth, 525-pitch black anodized aluminum rear sprocket designed for high-performance motorcycle racing and street applications. Engineered and manufactured 100% in the U.S.A., this sprocket is built to exacting Vortex standards using a specially formulated F5 aluminum alloy for an optimal balance of strength and weight savings over a stock steel sprocket.

Key Features:

• Black anodized finish for corrosion resistance and a clean, aggressive appearance
• Lightweight F5 aluminum construction — significantly reduces unsprung and rotating mass
• 100% CNC machined in the U.S.A. for precise tolerances
• 525 chain pitch compatibility
• 40 tooth count for tunable gearing performance
• Vortex patented tooth profile designed to extend sprocket longevity and reduce chain wear
• Anodized surface treatment resists corrosion and wear

The Vortex 193BZK-40 is an ideal upgrade for riders looking to fine-tune their gearing ratio, reduce drivetrain weight, and add a blacked-out aesthetic. Compatible with 525-pitch drive chains and applications using the 193-series bolt pattern.