Last night I came out of work to a flat tire. This is the second time I've got a puncture with less than 100km done on a brand new set of schwalbe smart sam tires. needless to say I was quite annoyed. The first puncture happened after about 40km and the second was after 95km, last night. It was the same wheel both times. After the first puncture, I checked and double checked for any foreign objects in the tire and rim and I found nothing. I pumped the tire and kept it at about 55psi because I read this is good for avoiding punctures. All this to no avail.
I'm just wonder what can I do to stop punctures for good? I'm a heavy guy (about 110kg) so maybe this just isn't possible? I've tried slime before and that was useless. I currently ride on Smart Sam 26" x 2.25