Vortex 641ZB-45 Aluminum Rear Sprocket 45 Tooth Black

The Vortex 641ZB-45 is a lightweight aluminum racing rear sprocket designed to reduce rotating mass and deliver more power to the pavement. This 45-tooth rear sprocket features black anodizing for a sleek appearance while providing excellent corrosion resistance.

Key Features:

• 100% CNC manufactured in the USA from specially formulated alloy per Vortex specifications
• Constructed from durable 7075 T6 aluminum with unrivaled precision machining
• Unique patented tooth design increases sprocket longevity
• Black anodized finish for corrosion protection and style
• Gunk clearing grooves between each tooth keep harmful elements at bay
• Lightweight design ideal for racing and street performance applications

Manufactured to tight tolerances, Vortex aluminum sprockets have a lifespan that rivals some steel sprockets while offering significant weight savings. The 641 series represents Vortex's standard aluminum racing sprocket line, trusted by racing teams and performance riders worldwide.