Vortex 642ZK-48 Aluminum Rear Sprocket 48-Tooth 520 Pitch

The Vortex 642ZK-48 is a lightweight aluminum rear sprocket designed for performance-oriented riders who demand precision and durability. This 48-tooth sprocket features Vortex's patented tooth design and is engineered to reduce rotating mass while delivering exceptional strength and longevity.

Key Features:

• 48-tooth count for 520 pitch chain applications
• 100% CNC manufactured in the USA from specially formulated aluminum alloy
• Anodized finish to prevent corrosion and enhance durability
• Unique saber tooth groove design increases sprocket life
• Lightweight construction reduces rotating mass for improved acceleration and handling
• Precision-engineered for perfect fitment and optimal power transfer

Vortex sprockets are trusted by professional racers and performance enthusiasts worldwide. Each sprocket is manufactured to exact specifications using aerospace-grade aluminum alloy, ensuring consistent quality and performance. The reduced weight compared to OEM steel sprockets allows more power to reach the pavement while improving overall bike responsiveness.