Vortex 253AZK-51 CAT5 Aluminum Rear Sprocket 520 Pitch 51-Tooth Black

The Vortex 253AZK-51 is a CAT5 lightweight aluminum rear sprocket featuring a 520 chain pitch and 51 teeth, finished in a striking black anodized coat with contrasting silver machined accents. Engineered for motorcycle performance riders who demand precision and reduced rotating mass, this sprocket is 100% CNC manufactured in the USA to tight tolerances that ensure concentricity and long service life.

Key Features:

• 51-Tooth / 520 Chain Pitch rear sprocket for precise gearing tuning
• Lightweight CAT5 aluminum construction reduces rotating mass for improved acceleration and handling
• 100% CNC manufactured in the USA to exacting tolerances
• Specially formulated alloy developed to Vortex specifications for superior strength-to-weight ratio
• Black anodized finish with contrasting silver machined cuts for a premium appearance and added corrosion resistance
• Unique Vortex patented tooth design increases sprocket longevity and chain engagement
• Lightening holes further reduce rotating mass and unsprung weight

Vortex Racing rear aluminum sprockets are a top choice among road racers and performance street riders. The 253AZK-51 delivers race-proven reliability with the durability expected from a USA-made component. Compatible with standard 520 pitch chains and drive systems across a wide range of motorcycle applications.