I got my hands on an '04 Roubaix frame/forkset (same frame as your '05) and I didn't realize how good I had it until I obtained a '10 Roubaix frame/forkset like three weeks after getting the '04 (don't ask why I bought another frame so quickly...I have issues). I swapped all of the parts (5800 groupset, carbon parts, etc) from the '04 to the 10 and I wasn't overwhelmed with the change. In fact, I'm kind of regretting it because I was able to ride 30 miles on the '04 with no problems and I actually finished strong--I struggled like a mo-fo to do the same distance on the newer frame and I was ten minutes slower (and had a sore lower back during the last 10 miles). I think that I've narrowed it down to the seat tube being at a different angle and I'm waiting for a straight CF seatpost to arrive from eBay (I have an offset one right now that was great on the '04). Hopefully that will help and I'll be able to ride the newer frame.


The point of my long-winded story is that if you have the perfect frame right now, don't dump it--keep it and just update the components.