I have a CAAD 8 Optimo 1 that I like very much. I changed the stock crankset to a Shimano Ultegra, the stem to a Thomson 110mm, 10^, X2 stem, the seatpost to a Thomson Elite I had on hand and the handlebar to a 44cm WCS Ritchey. I also ride Selle San Marco Rolls Saddle exclusively.

I am 5' 10", 220Ibs but with a cycling inseam of 34inches. I could fit a size 56cm with a shorter than 100mm stem, but went with a 54cm bike. I like my fit very much.

The CAAD 8 is a very solid bike. I test-rode both the CAAD 8 and 9, liked the 8 a bit better than the CAAD 9, hence my purchasing the 8.

FWIW, I did not test-ride any other brands when I was setting out to purchase a road bike, but I have had a Cannondale Killer V 900 mountain bike that I bought new in 1994 and which has served me really well. And I am the kind of guy that always take those kind of things into consideration when I am about to make a new purchase.

Maybe, just maybe, I should have taken a look at other "aluminum" brands b/4 making my CAAD 8 purchase.

Regards,