I tried using electricians tape last night and it didn’t work despite looking like it would.
So I went back to using duct tape as per the posts above.
Just fitted some 2.1 Panaracer normal sidewall tyres which were a bit of a faff.
useful extra tricks to get the to inflate and stay inflated:
– soapy water on the bead
– a luggage strap round circumference of the tyre (this pushes the bead out towards rim)
– leave freshly inflated wheel @50PSI horizontal, flip and shake every 30 mins for a few hours
once that faff is over you are good for months of puncture free goodness