Now long is a bit of string? At low pressures in the summer a few hours of riding, higher pressures winter? Just long enough to have forgotten you’d used one! Having said that I’m still using a tube with one on after a few years of commuting. It’s moved, but is still holding on.
Just have a look on a review site and the first one says you’d be better off dipping a tissue in honey
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.
Now long is a bit of string? At low pressures in the summer a few hours of riding, higher pressures winter? Just long enough to have forgotten you’d used one! Having said that I’m still using a tube with one on after a few years of commuting. It’s moved, but is still holding on.
Just have a look on a review site and the first one says
you’d be better off dipping a tissue in honey