Cyclocross - Weight vs. Durability?

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.

Price is a third variable in the equation.

But there is no law that says a light bike has some lifespan after which it spontaneously disintegrates.

There are 3 variables. Strong, light and cheap... but you only get to pick two.

Excellent point! I don't think I've ever heard it so poinently put... Anyway, let's just put money aside for the moment ( at least hipothetically)...If I go super light (frame, fork, wheelset, etc.), is there any disadvantage? (other than cost) If I'm 175lbs. , might I crack a fork or something? FYI, I'm NOT interested in racing, - just trying to keep up with my kids. Grassy fields, muddy trails, gravel paths, etc.? Thanks for any opinions and/or advise.

There are 3 variables. Strong, light and cheap... but you only get to pick two.

I have heard that but do not accept it

I feel you can get all three

I have heard that but do not accept it

I feel you can get all three

Example? I see all kinds of combinations with two of these variables, but never strong, light and cheap all in one... (at least when comparing similar capability bikes, i.e. geared to geared)... And buying that custom moots with zipps off your broke buddy for $100 doesn't count... :)

Example? I see all kinds of combinations with two of these variables, but never strong, light and cheap all in one... (at least when comparing similar capability bikes, i.e. geared to geared)... And buying that custom moots with zipps off your broke buddy for $100 doesn't count... :)

I guess it demends on your defination; but I feel the Fantom Cross Team Ti is all three
At about 18 lbs and $1695 and with Ritchey DS Wheels & Titanium frame - it is cheap compared to other CX bikes - fairly light - and plenty strong & durable

http://i161.photobucket.com/albums/t213/bikedoctor/cycloteamti.jpg

Gee, didn't see that coming a mile away...

Yeah...

Unfortunately, I'd lean towards the 'pick two out of three' line of thought. There's a reason there are any number of different bikes at varying price points.

That ole BD guy doesn't miss a sales opportunity.

Example? I see all kinds of combinations with two of these variables, but never strong, light and cheap all in one... (at least when comparing similar capability bikes, i.e. geared to geared)... And buying that custom moots with zipps off your broke buddy for $100 doesn't count... :)

What if Ya just out live your rich buddy with the Moots?:innocent::D
I think with with enough time and patience,in theory,you could get all 3 by buying a used bike
or getting a frame set and buying quality/light weight parts SLOWLY,one piece at a time.

But, what's the strongest and lightest frame material? Titanium?
What's a compromise? Reynolds 853?
What about the strongest/lightest components? Shimano XTR? Paul hubs?
What's light for a complete cross bike? 18 pounds?
How light is to light?
click on <read about> the race/light Legolas http://www.rivbike.com/products/list/bicycle_models#product=50-249
and
what's cheap for a used 18 pound XTR/Campy/Paul equipped titanium framed cross bike?
$1000.00? $2000.00?

Me? I'll stick with my strong & cheap Surly Cross Check&Trek 800
unless I ever get rich enough to go strong & light Rivendell&Retrotec
JM

perhap a fourth variable needs to be added - prep and setup

What special considerations are there with steel? vs. aluminum, for example? i.e. cleaning, wiping down, drying, etc?

That ole BD guy doesn't miss a sales opportunity.

When you believe in your product - of course not.

I think this deal is meeting the three conditions; light, strong, cheap

http://www.bikesdirect.com/products/motobecane/fantom_cross_ti.htm

But that's me