Originally Posted by
StanSeven
51mm aero wheels that weigh 400g less than your current box wheels with definately be faster on both climbs and the flats. I can't tell you how much because it's nearly impossible to measure but you will feel it for certain.
The 50cm Psimets I'm considering are going to be ~800g less. I think the difference should be noticeable. Just need to decide if I want to go tubular.