Subject: RE: Aero = time savingszipp has a pdf doc on their site referencing their wheels compared to a box rim. Hed has an interactive chart that doesn't directly specify time but drag numbers at different wind angles bikeradar has an article that does a test of roadie vs TT bike, road helmet vs TT helmet...google "bikeradar how aero is aero" and it should pop up also tire/tube drag table with watt savings floating around and you'll probably see some stuff pop up if you do a couple searches those are couple that pop up in my head...there's probably a bunch more though |