The 2025 Sum Pro, Sum, Krypton Pro, and Krypton line-up is way more than a color upgrade. It is a reimagined, elevated riding experience. With refined colorways and world-class specs; these new builds deliver an exceptional ride, combining unmatched speed, handling, comfort, and versatility that will turn heads wherever you go.

Argon 18’s premium road race bike, the Sum Pro, will see two new colourways and build upgrades with SRAM Red AXS with powermeter and Shimano Dura-Ace Di2 options, with the Di2 build also featuring the Scope Artech A4 wheelset and Vision Metron 5D integrated cockpit. With these industry-leading components, the Di2 Sum Pro comes in at 6.6kg (medium), offering a full premium performance package for those looking for pro-level results. With its aero tube shapes – including the distinctive hourglass headtube and draft-deflecting fork – and lightweight engineering, the Sum Pro brings together the best of the best of Argon 18’s road-race expertise. 

“The Sum Pro is the most responsive bike I've ever ridden,” says pro cyclist Andrea Perron from Team Novo Nordisk. “I really feel it when I'm descending, and when sprinting, the power transfer is unmatched. The technology in the sport is constantly evolving, so it's essential that we keep up. With the Sum Pro, we're at the forefront.”

Meanwhile, the Sum features the same podium-topping features with a slightly modified layup, now available with SRAM Force AXS and Shimano Ultegra Di2 options. 

“The Sum line gives road riders the best of both worlds: engineered for the climbs and premium ride quality, with the power transfer and aero performance for sprints,” says Vincent Lemay, Vice President R&D at Argon 18. “With modern racing looks and agile handling, the new 2025 versions reaffirm our commitment to giving our riders the best in high-performance engineering.”  

The all-road side of the lineup also features new colours and builds for 2025, with the Krypton Pro sporting new SRAM Red AXS and Force AXS – both with powermeters, and the Krypton adding Ultegra Di2 as well as Force AXS builds. 

“The Krypton Pro has proven itself to be far more than simply capable of tackling every surface: it’s proven itself to deliver best performance in all conditions,” says Alexandre Coté, Director of Product Management at Argon 18. “Meanwhile the Krypton has become the bike of choice for those who want to be ready for any adventure, any day, on any road. It’s the perfect choice for those who want one bike to take on all challenges. Overall, this is a performance-minded lineup update that's a taste of what Argon 18 will present in 2025.”