Originally Posted by wrr1020

I had one of these a couple weeks ago, went to air up my tires the night before i was supposed to ride in the early AM. Noticed the rear was flat so i changed the tube and discovered a pin sized hole where the air was escaping. Took me forever to find the source of the puncture in the tire. Kept running my fingers through the inside bead and finally found the tiniest piece of metal sliver/shard.