Vortex 491A-37 Silver 37-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 491A-37 is a lightweight aluminum rear sprocket featuring a 37-tooth configuration and 520-pitch chain compatibility. Designed for sport bike and performance motorcycle applications, this sprocket delivers race-proven durability and precision in a weight-saving aluminum construction.

Vortex sprockets are 100% CNC machined in the USA from specially formulated 7075 T6 aluminum alloy developed to Vortex's own exacting specifications. The patented saber tooth groove design and unique tooth profile set these sprockets apart from conventional offerings, extending service life even under demanding conditions. Each sprocket is induction-hardened and precision-plated to resist wear and corrosion.

Key Features:

• 37 teeth, 520-pitch rear sprocket
• Lightweight 7075 T6 aluminum construction reduces rotating mass
• 100% CNC manufactured in the USA
• Vortex patented tooth design for increased sprocket longevity
• Induction-hardened and plated for corrosion and wear resistance
• Silver anodized finish
• Precision tolerances ensure concentricity and smooth chain engagement

The Vortex 491A-37 is an ideal upgrade or replacement rear sprocket for riders seeking a performance-oriented, long-lasting drivetrain component. Part number: 491A-37.