Vortex 165ZB-55 Aluminum Rear Sprocket 420 Pitch 55 Tooth Blue

The Vortex 165ZB-55 is a high-performance aluminum rear sprocket designed for motorcycles using 420 pitch chain systems. This 55-tooth sprocket is part of Vortex Racing's CAT5 series, featuring a distinctive blue anodized finish with silver machined highlights that provide both style and corrosion resistance.

Key Features:

• CNC machined from premium 7075-T6 aluminum for exceptional strength-to-weight ratio
• CAT5 anodized blue finish applied before machining, creating silver highlights on tooth edges
• Strategic lightening holes reduce rotating mass for improved acceleration
• Precision-manufactured to exact tolerances ensuring concentricity and extended durability
• Unique Vortex tooth design and saber tooth grooves for optimal chain engagement
• 55-tooth configuration for modified gearing ratios on mini and youth bikes

Vortex Racing sprockets are trusted by professional race teams worldwide and manufactured in the USA to the highest quality standards. The 55-tooth size is typically used for stunt applications or significantly increasing low-end torque on smaller displacement motorcycles. Compatible with Honda Grom, Kawasaki Z125, and other mini bikes using 420 pitch drive systems.