Fulcrum | Racing 4 DB

The Fulcrum Racing 4 DB is a fast and versatile road wheelset designed for endurance and performance riders. With a 19mm internal rim width (C19) and a 34mm aerodynamic profile, it delivers the perfect mix of stiffness, responsiveness, and aerodynamic efficiency. Tubeless-ready with 2-Way Fit, it works with both tubeless and clincher setups, making it an excellent choice for training and racing alike.

This wheelset is available in two freehub spline options to fit different drivetrain systems:

• HG11 (Shimano/SRAM 11-speed)
Fits Shimano and SRAM 11-speed road drivetrains

• XDr (SRAM XDr 12-speed)
Designed for modern SRAM 12-speed drivetrains

Key Features

• 34mm Aero Rim Profile
Balances aerodynamic speed with stable handling in crosswinds

• 19mm Internal Rim Width (C19)
Optimized for modern road tires, improving support and rolling efficiency

• Tubeless Ready (2-Way Fit)
Compatible with both tubeless and clincher tires

• Disc Brake Specific Design (AFS)
Provides consistent stopping power and control in all conditions

• Included Tapes & Valves
Supplied ready for tubeless setup out of the box