4×5 VO2s By Uhl Mar 6, 2009 Eagle, ID I did a nice set of 4×5-minute VO2s today. Wattage was good for the set and while I probably could have done another one, I restrained myself. Saving my energy for some long rides in the next few days. Tags: training, VO2, wattage PrevOlderHour of Power NewerTwo Days to Race, Two LTsNext