Just wondering how many of you have had an opportunity to test ride both bikes. I have logged a fair number of miles on both and personally found the Orbea Opal a bit more comfortable. They're both very stiff framesets yet I've read some people found the Opal too stiff. I wouldn't describe either as overly stiff yet I found the Orbea slightly more compliant than the Specialized Tarmac. The Tarmac I rode was full Ultegra SL and the Orbea Opal was full Dura/Ace. I could'nt say I prefered one over the other, both are outstanding race bikes, yet I wouldn't hesitate to use either of them as a weekend century bike either.