Well, I’m back with a with another bike to consider. I’ve had a few days to ride the 2015 Aluminium framed Madone 2.1 and today I had the chance to ride a 2017 Diamondback Century 4 Carbon in the same 54c size as my Trek, with 105 group set, hydraulic disc brakes, full carbon frame and fork, Carlisle GP5000 TL 32’s. The bike did feel smoother and was a little more comfortable to ride, the price was fair so I bought it as well. I assume much of this came from its saddle design and the 32 tires compared to the 23’s on the Trek. Anyway... I plan on riding them both for a while to get a better understanding of the differences and how they impact my riding. In the end, I plan on selling my least favorite one. But if I had to choose now, I’d say the Diamondback feels like a higher quality smoother, quieter machine compared to the particular model of Madone that I have. What I want to know from the experts here is what is your opinion of the Diamondback? I stopped at a local dealer today and asked them if they carried Diamondback and he said... “no, that’s a cheap department store brand” and that I should try Dicks Sporting Goods... that comment has caused me to question my judgement on this bike. Opinions please? Thanks for your time.