I did a 15 miler yesterday, mostly flats and a few over passes where I live. It felt just as stiff as my Tarmac but the handling is second to none. I sprinted and maintained 25 mph on a 2 mile stretch and felt little less effort apposed to my Tarmac. And as I eased up it felt smoother on the drops as I guided through. And my out of saddle efforts over the over pass, Didnt feel any flex through out the frame and the descent was awesome, noticed the green light at the bottom of the pass and I attacked The decline and going down the curve was remarkable. I had a grin from ear to ear as I rode home. Only bummer I had was I heard the dreaded hiss as I was about 1/4 mile from my house in my neighborhood, damn freakin flat!! And I didn't bring my saddlebag with my tubes And co2 pump... Didn't think I needed it, thought I was just going maybe 5 miles tops, but I kept riding and was enjoying the ride. Oh well... I walked home.