After a flat, soon after I installed these wheels, I needed to re-true the rear wheel. Apparently, after wrestling with the tire to get it mounted, I used a little too much force on the wheel. Anyway, long story short, I went to re-true the wheel and as I turned the nipple in a clockwise direction, (in relation to the spoke) just like every other wheel on this earth, it was only making it more out of true. I had it so far out at that point! That�s when I realized the threads were backwards. After that realization, I got it back to true, in short order. Just something to be aware of.
I use these tires on Zipp 303S Rims for all road riding and very light gravel. I mount them without using a lever but it takes patience. I also have to use an air accumulator tank to get them to seat. The first set of tires only lasted 1,000 miles even though the tread indicators were still visible. I swapped them out because of cuts on the front tire and tread damage to the back tire even though they never went flat during a ride. Road and bike path conditions where I ride are horrible and encounters with broken glass, tree debris and cracked and bumpy pavement are frequent.
