Should have been simple - swop the tyres on my road bike, hour and a half later... Everything that could go wrong did
tyre on wrong way round - corrected - oh flip it was correct first time
-fitted on correctly and tried to pump inner tube up - valve failed
all off, new inner tube and tyre refitted but did not spot the slight misfit so pumped up and found the inner tube bulging out of the tyre
. Sorted that out and finally got the rear wheel done. Then the turn of the front wheel which thankfully went okay.