Vortex 920A-37 VTX Aluminum Rear Sprocket 37-Tooth

The Vortex 920A-37 is a lightweight aluminum rear sprocket featuring a 37-tooth count, designed for performance-minded riders who demand precision-engineered drivetrain components. Vortex Racing is a U.S.-based manufacturer with a long-standing reputation for producing top-quality motorcycle racing parts used by professional race teams worldwide.

Key Features:

• 7075-T6 billet aluminum construction — reduces rotating mass for improved throttle response and acceleration
• 37-tooth rear sprocket — optimized tooth count for balanced performance across acceleration and top speed
• CNC machined in the USA — precision manufacturing to the tightest tolerances for consistent fit and reliable performance
• Anodized finish — provides corrosion resistance and a clean, race-inspired appearance
• Lightweight design — reduces unsprung and rotating weight compared to OEM steel sprockets
• Compatible with standard 920-pitch chain applications

Vortex aluminum rear sprockets are a popular upgrade for riders seeking to reduce drivetrain weight and sharpen throttle response. The precision CNC manufacturing ensures proper chain engagement and long service life. As a direct-fit replacement or performance upgrade, the 920A-37 is engineered to meet the demands of both street riding and competitive motorsport applications.