Originally Posted by
cderalow
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I'm not sure why everyone thinks discs are 'heavy'. total my discs (calipers, bolts, rotors & pads) weigh in around 330g each wheel. Is that more than a high end road caliper? Yes are my discs the lightest thing out there? in no way. are there equally as heavy road calipers? yes.
at the pro level are riders having to add ballast to their bikes to meet the UCI minimum... YES!
I think people seem to forget.... at the pro level there's a weight they can't get below, and quite a few of the bikes they ride can get to that limit without going to the absolute lightest of each item.
hell a lot of them run crank based power meters which weight as much as my crappy MTB triple (SRM weighs in around 750-800g) and they still get down to the minimum! who cares if you've got an extra 300g.... that's 300g that you offset somewhere else.
Which is why you are seeing a lot more aero frames. When frame weight is no longer the limiting factor, added material for improved performance is my preference. I ride disc brakes on my commuter but have never needed them in the PNW on my road bike, and i've done hundreds of miles in the rain.