Originally Posted by
WhyFi
You have the only rim brake R3 in the group. I don't think that my Rotor/P2M crankset is terribly light, either - I would expect that it's as much as a couple hundred grams heavier than an Ultegra crankset, but I don't know for sure. But again, I'm just guessing at the total bike weight and being somewhat conservative... I think.
I have the same PM with Rotor ALDHU arms and a steel axle. Pretty sure it weighs more than the 6800 set that was there before. I make up for it by carrying less water.