For us, the Argon 18 Gallium and Gallium Pro road and TT/Tri bikes still set the "standard" for how a road bike ought to ride. How it should climb, how it should handle on high speed descents, how efficiently it should transfer power, and last but not least, how it should feel on rough surfaces.
In regards to these standard-setting ride characteristics, the new-for-2015 Nitrogen aero road bike is right on par with its "Climber-Counterpart", the Gallium Pro. With Shimano Di2 Groupset (mix of Ultegra and Dura Ace), Profile Design Twenty-Four 58mm Carbon Clinchers, and 3T Aeronova Bars, a medium weighs in at an astonishing 15.7 pounds!
If you're at all in the market for a road or TT/Tri bike, the Argon 18 line should absolutely be considered. The heart and soul of our shop, the FIT --> SPEC --> BUILD process, continues to turn out flawless complete bike solutions that not only look incredible, but perhaps most importantly, fit perfectly.
This Custom Spec'd Argon 18 Nitrogen is a fine example of the results of that process.
Enjoy the pics below.