Quote Originally Posted by Meg McKilty View Post
Update: I have now gone through another three tubes. We're wondering if it's a spoke or if the rim tape is not on properly. I have to check today, and possibly take it to a master mechanic. I am now going crazy.
Yes have your rim checked out, but....my DH had 3 blowout flats in one day and figured out that his technique was allowing an edge of tube to get pinched in the rim near the valve stem. He needed to change his technique, which he did, and doesn't have flats anymore. Might be worth having someone experienced watch what you are doing, step by step.

I thought those might be skunk hats.