Wanting to switch out a set of 25's to a pair of 23's on my Campy Ventos wheelset. The 25's are Conti Gatorskins and although they were difficult to get on, I got them on. I'm replacing them with size 23 Sefras tires and oh my God they are difficult to get on. I finally got them on, but it took a good hour and once I pumped them up, a minute later, both tubes popped. Is there a better way????? Should I look for different tires? Campy wheels suck!