2025 ARGON 18 SUM SHIMANO 105 DI2 - ROAD BIKE

The Argon 18 SUM 105 Di2 Road Bike offers a flat-out advantage on climbs, sprints, and straightaways, the only question is how much mercy to show your competitors.

A rider-focused design ensures a frame that is both responsive and stable, delivering a ride quality that surpasses most aero frames. The Sum’s layup is meticulously engineered to optimise aerodynamics while minimising weight. Its new aero profile tube shapes strip away excess material, maintaining maximum power transfer for a truly efficient ride.

3D System

Road Race Geometry

Designed for razor-sharp reflexes and precision handling, our road race geometry meets the demands of racers at every level.

Topological Compliance System

A proprietary design method providing exceptional vertical compliance and reduced road-induced vibrations, while retaining maximum stiffness. Each bike featuring TCS technology undergoes individual analysis to optimise frame topology and carbon layup.

Argon Fit System

With size-specific geometries, Argon 18's fit system ensures optimal performance and positioning for riders of all sizes, leaving no cyclist behind.

Elite Level Layup

Crafted for the discerning cyclist, our Elite-level bikes receive the same meticulous attention to detail as our Pro-level models, offering more than just trickle-down technology.

Technical Specification