Argon 18 Sum Pro Road Bike Frame

The Ultimate All-Round Road Bike - Argon 18 Sum Pro

With the development of the Argon 18 Sum Pro, the Canadian company has introduced their ultimate all-rounder racing bike. Offering both aero-efficiency and a low weight worthy of the biggest Alpine climbs, the Sum Pro’s advanced carbon layup and race-ready geometry will help you race to the front of the pack.

Over the past decade, bike manufacturers have gone from separating their road racing bike models into aero and lightweight categories. The idea being that you could have an aero bike for flat rides and races, and then switch to a lightweight climbing bike for days you spend in the mountains. The problem with that scenario is that rides and indeed races are seldom so mono-topographical. Nearly every ride will face a mix of climbs and open-space cross winds. That’s where bikes like the Argon 18 Sum Pro really shine. With a frame that weighs only 870 grams it climbs like a dream while the aero-optimized tube shapes allow it to cut through the wind with ease.

Argon 18 has a deep history in working with carbon fiber, which is why they can create a frame as advanced as the Sum Pro. They’ve not only focused on aerodynamics and power transfer, but they’ve introduced a level of vertical compliance that makes the ride extremely comfortable too. The race-oriented geometry of the Argon 18 Sum Pro ensures that riders of all sizes will benefit from the ability to position precisely over the bottom bracket to enhance pedal efficiency.

Enhanced 3D+ System in the Argon 18 Sum Pro Frame

To help every rider get the perfect fit, Argon 18 uses their enhanced fully integrated 3D+ system which has been streamlined with the frame and offers three head tube extension height options of 0mm, 15mm and 25mm for every frame size. It helps every rider get the exact stack they want without compromising on stiffness or appearance.

Sharp handling and immediate responsiveness make the Argon 18 Sum Pro an excellent option for everything from crit racing to Strava KOM hunting.