Well you were the one that said they eventually failed. Are we talking hours, days, weeks, months, years later?
I've found the Park ones to be a bit sketch in hot weather too (and damp forests, waves at McKenzie Pass though that ended up being a rim tape issue)
Within the week. Hot day mtb hours at best. Your mileage may vary. The PT ones are as you say a bit twitchy in the heat at road pressure, but seem fine at the new standards. The slims are the opposite.
So, I should be fine in Seville, where it's checks notes 38C in the shade.
@Chaley started
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Well you were the one that said they eventually failed. Are we talking hours, days, weeks, months, years later?
I've found the Park ones to be a bit sketch in hot weather too (and damp forests, waves at McKenzie Pass though that ended up being a rim tape issue)