And you have bike thieves screwing your wheels loose for whatever reason. Bike theft was a big problem at least when I was at Stanford years ago, and my front w

And you have bike thieves screwing your wheels loose for whatever reason. Bike theft was a big problem at least when I was at Stanford years ago, and my front wheel once came off when I was biking (thankfully I was wearing a helmet). Guy at bike shop speculated that it was the handiwork of a thief, who might have been interrupted mid act.