Meet the best of the best: aero to match the Nitrogen, pure road performance to match the Gallium Pro, with race-ready handling and premium ride quality. The all-new Sum Pro features our most advanced layup and technologies to get you to the front of the group and keep you there, through the climbs, the corners, and the sprints. To celebrate the new addition to our lineup, Argon 18 welcomed UCI ProTeam Novo Nordisk into the family in January 2022, with a fleet of custom-painted Sum Pros.
Argon 18 Sum Pro and Sum bikes and framesets will be available soon. (Late 2022).