Is it correct to assume that if I go down in bike weight (for example - from a Fuji Cross Comp to a Pro, the Altair aluminum to the A6 QP and from the 990 fork to the 770) that it will crack, bend, etc. easier than the heavier one? Or at least it might not last as long? I talking about 10 - 12 years/the rest of my life? I mean - going lighter, you've got to be giving up something, right? I'm +/- 165 lbs. and just want to buy something that will last me a long time w/o worrying about it cracking or whatever. I do want a cross bike, but I'm not absolutely decided on Fuji. Thanks.