There is a point to which being light no longer matters. You can be as light as you want but if it gets to the point where your lightness cancels out being efficient then what's the point? If you are having to work harder because of the flex then you would if it were heavier and stiff then why bother being light? I answer this question almost every week from people that wonder why I chose oversized deda newton bar and stem combo over some superlight carbon combo. It's all about stiffness.
but, isn't that what I just said?
I think until you or anyone else for that matter has built a 12 pound bike for under the amount mentioned above it is best to keep ones mouth closed. Besides, even if you had a 14 pound bike I bet I could walk all over you with my 16 pound bike. Equipment can only help you so much
So, Superlite is the first to respond with comment--as it should be! When I said "no compromises" I meant--to weight! You are right that to get a 12 lb bike you *must* make compromises. But not to weight. You can be a stiffness weenie, a comfort weenie, a bash it until it breaks weenie, but in the end, we're all here because of our interest in weight. I was once, in the early 80s, an "aero weenie." I designed and built a bike that was an incredible time trial bike with all the known aero tricks at the time, but it broke at the bottom bracket while climbing a severe hill in Perth, Western Australia. I have made compromises, and survived.
But in the end a weight weenie is a zealot, following a prophet that speaks only of low mass.
My Grace seat and post is near completion, apparently. So I decide to put my Scandioum ISIS BB back in my bike--without the sleeve. A whopping 12g saved. Why the shell not...I say!
keep it (super) light.
I hear what you are saying, but I still don't fully agree on what your saying about what define a true weight weenie.
Scandium ISIS, uh oh. Don't risk it. Can you say stupid light? Not dissing on your bike, but using that part really is not worth taking the risk, but then again, your are
trying to be a true