Vortex 642ZB-51 Aluminum Rear Sprocket 525 Pitch 51 Tooth Blue

The Vortex 642ZB-51 is a lightweight aluminum rear sprocket designed for serious riders who demand precision and performance. This 525 pitch, 51-tooth sprocket is manufactured from specially formulated 7075 T6 aluminum alloy and 100% CNC machined in the USA to exact tolerances, ensuring perfect concentricity and extended service life.

Key Features:

• 525 chain pitch with 51 teeth for optimal gearing
• CNC machined from 7075 T6 aluminum alloy for maximum strength and durability
• Blue anodized finish prevents corrosion and adds distinctive style
• Patented Vortex tooth design with Saber tooth grooves increases sprocket longevity
• Lightening holes reduce rotating mass for improved acceleration
• Manufactured to tight tolerances ensuring concentricity and smooth operation
• 100% made in the USA to Vortex Racing specifications

Vortex Racing has been manufacturing premium motorcycle racing components since 1995, trusted by professional race teams worldwide. Their aluminum sprockets offer the perfect balance of lightweight performance and durability, with many riders reporting lifespans that rival steel sprockets thanks to the superior material quality and precision manufacturing.