Are there any heavy ridders on here that are ridding on a Clydesdale 909 wheelset . By heavy ridder i mean 260 to 275 lbs not you little guys that are 180 lbs and think you are a heavy ridder . If so how are the holding up. Im getting ready to buy a set to do some time trials . Also has anyone tried Rolf Vigor R S yet. I have a set but have not rode on them yet.