All the time . Just don't put them on oversize tires and undersized rims. Follow the guidelines properly installed and they will last a long time at any speed. Had a set on 235 x 75 x 15 on 6" rims they had a fairly high mortality rate , biggish tires on narrow rim = side wall bulge = unhappy , porta wall. They won't last forever , but they are as cheap as chips.