At the time I was using them I was going through goathead country in the southwest. They were extremely thin and I just had flat after flat with them. I can't say how they are anywhere else in the country but in goathead territory they just don't hold up. Got really frustrated and had a set of Byways delvered to the next town. They rolled ok, I think they were the same, 54mm. It could have been just me, I put about 400 miles on them before I found a set and switched them out.