Afrank said:
I may be getting a new bike soon and need some advise on a bike my local bike shop can get me. It is a 2010 Felt FC with ultegra, in my size that the shop can get for around 2,100. I have also been looking at the Cervelo S2 which retails at 2,800. Also does anybody know what the weight of the Felt FC(61 cm) will be? So what's everybody think? Should I buy it?
Yes. No. Maybe.
You're looking at two different types of bike. The S2 is aerodynamically shaped, the FC is not. Given an identical setup and rider, the S2 will be slightly faster in a straight line, though whether this is actually important is open to debate. The downside is that it will probably not ride and handle as well; reviews of the S2 suggest that it has a notably rough ride.
You have to consider the type of riding you want to do (do you race? do you do long endurance rides?) the terrain you're riding on (how smooth are the roads in your area?) and your own abilities and preferences (do you have wrists that can tolerate road buzz?).
Frankly, if you don't race, I'd say a bike like the Felt makes much more sense - the marginal performance advantages aren't likely to be worth the extra cost and pain. If you race and want the last bit of performance advantage, maybe it's worth considering the Cervelo.
And, finally, whatever bike you buy, make sure that it's properly set up to fit you!