Originally Posted by
badmother
Then it must be the security guard (unless it is the butler..)
I have Marathons on my white folder so I know the tyre. I think it is always good to try to find out why it happened- to be able to avoid it happening again. Did you ride wit low air preassure or is the tyre just old? Like BNB said it is always good to practce when you can do it at home, in the weekend and in the daylight so you are not cought in a nasty situation.
This. If you don't figure out what happened, you have a higher chance of another flat tomorrow. Unfortunately, too many bike shops DON'T bother to locate the problem. I've had three flats repaired at bike shops and every single one reappeared within 1-7 days because the shop did not find the problem.
But don't get me started on having to re-do work I've paid bike shops to do...