Vortex 825AZK-47 Aluminum Rear Sprocket 47-Tooth

The Vortex 825AZK-47 is a high-performance 47-tooth aluminum rear sprocket engineered for competitive and street riders who demand lightweight precision hardware. Manufactured by Vortex Racing, a trusted name in motorcycle drivetrain components, this sprocket is crafted from high-grade 7075-T6 aluminum alloy for an exceptional strength-to-weight ratio over stock steel sprockets.

Key Features:

• 47 Teeth — optimized tooth count for acceleration and mid-range torque response
• 7075-T6 Aluminum Construction — significantly lighter than OEM steel sprockets while maintaining durability
• Hard-Anodized Finish — provides corrosion resistance and extended service life
• CNC Machined — precision cut for exact fitment and smooth chain engagement
• 825 Series — matches 825-series chain pitch specifications
• Direct bolt-on replacement — no modifications required

Vortex sprockets are manufactured to strict tolerances, ensuring quiet operation and even chain wear. Whether used for track days or aggressive street riding, the 825AZK-47 is a proven upgrade that reduces unsprung rotational mass for improved handling and throttle response.