Vortex 491A-49 Silver 49-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 491A-49 is a silver anodized, 49-tooth aluminum rear sprocket designed for 520-pitch chain applications. Manufactured from high-grade 7075 T6 aluminum and 100% CNC machined in the USA, this sprocket delivers race-proven performance with a significant weight reduction over stock steel sprockets — an advantage that translates directly to improved acceleration due to reduced rotating mass.

Key Features:

• 49-Tooth / 520 Pitch: Bolt-on gearing upgrade for increased low-end torque and acceleration
• 7075 T6 Aluminum Construction: High-strength alloy provides an ideal balance of lightweight performance and durability
• 100% CNC Machined: Manufactured to tight tolerances for a perfectly concentric sprocket every time, freeing horsepower and extending chain life
• Vortex Patented Saber Tooth Design: Unique tooth profile reduces drag and friction for improved acceleration and deceleration response
• Silver Anodized Finish: Clear anodizing resists corrosion and maintains appearance over extended use
• Weight-Reduction Cutouts: Strategically placed slots minimize rotating mass for enhanced throttle response
• Mud-Clearing Grooves: Tooth grooves help expel debris and keep the drivetrain running cleanly

The Vortex 491A-49 rear sprocket is a direct-fit performance upgrade for sport bike and motorcycle applications using a 520-pitch chain. It is an ideal choice for riders looking to optimize gearing for track days or aggressive street riding without sacrificing reliability.