How much merit is there to these "ultra light" rims
Ok, so I'm not new at this. I understand the concept of rotational inertia. I understand the concept of unsprung weight. I know it helps in theory BUT ...
I look at the pricing of these ultralight rims and think to myself: is this for real??? I mean, all things being equal, how much time/lap are people going to shave off by saving 2lbs/corner on the same size rim? Can someone clarify this for me? Does anyone have first hand experience or even better - concrete data that proves me wrong?
This is only an opinion so lets not start a war here.