Vortex 635ZR-51 530-Pitch 51-Tooth Aluminum Rear Sprocket

The Vortex 635ZR-51 is a 51-tooth, 530-pitch aluminum rear sprocket designed for high-performance motorcycle applications. Manufactured in the USA using a specially formulated aluminum alloy to Vortex's own specifications, this sprocket delivers the precision, durability, and weight savings demanded by sport and performance riders.

Key Features:

• Chain Pitch: 530
• Tooth Count: 51 teeth
• Material: Aerospace-grade aluminum alloy, CNC-machined for precise concentricity
• Lightening holes reduce rotating mass for improved throttle response
• Vortex patented tooth profile design for extended sprocket longevity
• 100% CNC manufactured in the USA
• Anodized finish for corrosion resistance and vibrant color retention

Vortex rear sprockets are a popular choice among sport bike and racing enthusiasts looking to reduce unsprung weight and fine-tune their gear ratio. The 51-tooth rear sprocket provides increased low-end torque and improved acceleration compared to lower-tooth-count options, making it well-suited for track use or spirited street riding.