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I can thouroghly recommend the irc x’a. I’ve had them on all winter. They do not cut or puncture easily. I rode through some really horrible weather and road conditions with no problem. When they did puncture they sealed instantly (2 or 3 times). At the end of the winter I ended up with a hole that needed a worm. I’ve tried these with pro-one’s without success no issue with the irc’s.
The main problem has been the tendency to get punctures which I'm hoping the more robust tyre will reduce.
DT Swiss says internal width is 18mm. Should I get the 17mm or 21mm tesa tape?