Vortex 641-56 Silver 56-Tooth Rear Sprocket

The Vortex 641-56 is a 56-tooth silver rear sprocket precision-machined from 7075 aircraft-grade aluminum for an exceptional strength-to-weight ratio. Designed for performance-oriented street and track riders, this sprocket delivers reliable power transfer while shedding significant weight compared to OEM steel sprockets.

Vortex's patented tooth profile geometry is engineered to reduce chain wear and extend sprocket life, even under aggressive riding conditions. The precision-machined construction ensures consistent chain engagement and smooth power delivery throughout the sprocket's service life.

Key Features:

• 56-tooth rear sprocket configuration for optimized final drive gearing
• Constructed from 7075 aircraft-grade aluminum for lightweight strength
• Vortex patented tooth design for increased sprocket longevity and reduced chain wear
• Precision CNC machined for consistent chain engagement
• Silver anodized finish for corrosion resistance and lasting appearance
• Direct bolt-on replacement — no modifications required

The Vortex 641-56 rear sprocket is an ideal upgrade for riders seeking improved acceleration response or customized gearing ratios. Vortex Racing is a trusted name in motorcycle drivetrain components, supplying sprockets to amateur and professional racers worldwide.