Vortex 165ZR-32 Aluminum Rear Sprocket 420 Pitch 32-Tooth Red

The Vortex 165ZR-32 is a lightweight aluminum rear sprocket designed for small-displacement motorcycles running a 420-pitch chain. Featuring a 32-tooth count and a striking red anodized finish with CNC-machined contrast accents, this sprocket delivers the ideal combination of performance, durability, and visual appeal.

Manufactured 100% in the USA to precise tolerances, Vortex aluminum sprockets are engineered to reduce rotating mass compared to OEM steel sprockets, resulting in improved throttle response and quicker acceleration. The anodized finish is applied before the sprocket teeth are cut, producing Vortex's signature two-tone machined look while providing protection against oxidation.

Key Features:

• 420 Pitch — compatible with standard 420 chain
• 32 Teeth — performance-tuned tooth count for optimized gear ratio
• Aerospace-grade aluminum construction — significantly lighter than OEM steel sprockets
• Red (ZR) anodized finish with CNC-machined accent cut
• Unique Vortex tooth profile engineered for smooth chain engagement and extended sprocket life
• 100% CNC manufactured in the USA to precise concentricity tolerances
• Lightening holes to further reduce rotating mass

Vortex aluminum sprockets are the preferred choice for riders seeking measurable performance gains. For best results, pair with a quality 420 chain and replace the front sprocket simultaneously. Regular chain cleaning every 300–400 miles will maximize the service life of this sprocket.