I run them on both my bikes and love them, on the echo I run about 25psi and on the fourplay I run them at 40 ish. I only had one mare with punctures on the echo, got three in one night, first was caused by me not making a gap and ramming wheel into a sharp metal edge. The same gap caused the other two punctures but I was also using my spare 1.75-2.0 tubes which became very thin when stretched into the 2.4 conti so they didn't stand much of a chance.