The Argon 18 Sum Pro Shimano Dura-Ace Di2 blends aero engineering with electronic precision shifting. Built upon Argon’s Sum Pro carbon frame, this build features race-geometry tuning and aero-optimized tubes. Equipped with the Shimano Dura-Ace Di2 2×12 drivetrain, it offers fast, flawless shifting under load. Aero wheels (e.g. Scope Artech A4) and high-end tires deliver stability and low drag. The Sum Pro frame’s compliance and structural tuning absorb vibrations without sacrificing stiffness. Internal routing, aero shaping, and premium integration make this a top contender for racers and speed seekers.

This specifications are from the information the brand releases and only apply to stock bicycles, build ups´ specifications will vary according to the components the buyer chooses.