Vortex 193AZR-45 CAT5 520-Pitch 45-Tooth Aluminum Rear Sprocket Red

The Vortex 193AZR-45 is a CAT5 aluminum rear sprocket featuring a 45-tooth count and 520 pitch, finished in a vibrant red anodize with contrasting silver machine-cut accents on the sweeps, mud grooves, and teeth. Designed for road racing and performance street use, this sprocket delivers a significant weight reduction over OEM steel units, reducing rotating mass and contributing to improved throttle response and acceleration.

Key Features:

• CAT5 aluminum construction — machined from lightweight aerospace-grade aluminum for maximum weight savings
• 100% CNC manufactured in the U.S.A. to tight tolerances
• Specially formulated alloy per Vortex's own material specifications
• Saber tooth grooves — Vortex's patented unique tooth design increases sprocket longevity
• 520 pitch — compatible with 520-size OEM chains or suitable 520 conversion setups
• 45 teeth — ideal for tuning acceleration and overall gearing ratio
• Red anodized finish with bright silver highlights on machined surfaces for a distinctive appearance; anodizing also helps resist corrosion
• Color anodize applied selectively — excludes sweeps, mud grooves, and teeth for a flash of color with silver contrast

The Vortex CAT5 sprocket line is a popular choice among track-day riders and road racers seeking a direct OEM replacement or a lightweight upgrade as part of a 520 chain conversion. The patented sprocket geometry and saber tooth groove design set Vortex apart from generic sprocket offerings.