Originally Posted by kixsand
I'd really want to be sure that I needed/wanted the more upright geometry of the Roubaix before I invested in one. Maybe ride a Tarmac back to back with the Roubaix to get a feel for what you'll be missing out on?
kixsand, that is exactly what you need to do. That is one is the reason I suggest you work with a LBS. When was looking to buy mine (I also bought one for my wife), I let the LBS know I wanted to ride at least 5 miles on each bike to get a feel. They had no problem with that. 1st I rode the Tarmac, it felt pretty decent. Then I hopped on the Roubaix and I was instantly hooked. You need to do the same, try them both and get the one you feel best meets what you want to accomplish. If you are interested in racing, you will probably want to lean toward the Tarmac. If you are more interested in a lot of group rides, of long rides, you may want to look more seriously at the Roubaix. That being said, I pass a whole lot of Tarmacs when I step on it in group rides, the Roubaix is still a fast bike. It is the Bike Tom Boonan (sp) one the Paris Roubaix on in 2012.