Ok! I was using these puncture resistant tubes on my back rim of my MTB now turned urban mule. I had puncture resistant tubes on there but they weighed 90 lbs each so I switched them out for standard tubes. Now, I got a hole on the rim side of the tube. So I bought some velox tape and replaced that on the rim and I got another one in one day. I pulled the tape off and ran my finger over where the spoke comes through the rim (I'm sure it has a name) and I feel some slight sharp edges. Nothing like a pinhead or anything like that but I can feel it. Can that be my problem or is there something that I am missing to rim tape?
I should also add that I didn't have this problem when I used low pressure tires but now that I am at higher pressures, it is happening. This is what has me wondering if the sharp spots can be the problem.
It has made my girl unreliable and I can't ride anywhere. HELP ME! If I took it to my lbs would they be able to tell me?