Vortex 404ZK-53 CAT5 Black Aluminum Rear Sprocket 53-Tooth

The Vortex 404ZK-53 is a CAT5 rear sprocket machined from 7075 aluminum and finished in a black anodized coating with contrasting silver machine-cut highlights. Designed for performance street and track riders, this 53-tooth sprocket delivers precise power transfer and a significant weight reduction over stock steel sprockets.

Key Features:

• 53-Tooth rear sprocket for tunable gear ratio adjustment
• Black (ZK) anodized finish — anodized first, then CNC machined for a trick two-tone look with silver accents
• 7075 aluminum construction — specially formulated alloy per Vortex specifications reduces rotating mass
• 100% CNC manufactured in the USA to precise tolerances
• Vortex patented Saber Tooth groove design — unique tooth profile increases sprocket longevity
• CAT5 series — trusted by club racers and professional competitors alike

The Vortex CAT5 rear sprocket is a direct upgrade for riders looking to fine-tune their gear ratio for improved acceleration or top-end performance. Adding teeth to the rear sprocket increases low-end pull and acceleration, making this 53-tooth option ideal for tight circuits or aggressive street riding. Verify fitment by tooth count, bolt pattern, and chain pitch before ordering.