got 25mm tape (for 21mm internal rims) on advice of someone here. fitted it to one rim... quite creased, with particular pitting in the spoke-wells. can't seat tyre when pumped. lovely stuff
If you can pump them just keep pumping until it seats. Sometimes you have to go well over the max pressure until it pings.
For applying the tape just go over the wheel as tight and centered as possible
got 25mm tape (for 21mm internal rims) on advice of someone here. fitted it to one rim... quite creased, with particular pitting in the spoke-wells. can't seat tyre when pumped. lovely stuff