Originally Posted by
Wesley36
Yes, exactly that
Two to five percent improvement in times is claimed.
If the claim is correct, then it stands to reason that different weight rims/tires make a measurable and significant difference in performance, even when the weight is fixed.
Originally Posted by
merlinextraligh
Unfortunately, there likely not UCI legal. THey violate the rule regarding energy storing devices.
I'd call foul on that. It stores energy analogously to storing potential energy when you simply climb the hill. Which everyone does, obviously.