Brucey wrote:I happened to have a recent Michelin 23mm tyre in my hands earlier. Writ upon the sidewall was a maximum pressure rating of 8 bar (116psi) and a minimum pressure rating of 6 bar (87 psi). The latter seems too high for light-built folk, and the former seems too low if you are erm, 'somewhat thick-set' shall we say.
Part of the trend to wider tyres is the change in the cycling demographic; there are a lot more people who are above average weight riding bikes these days.
Mass produced 'racing bikes' have weight limits that are almost double the weight of an average professional cyclist, and skinny tyres won't do more than a narrow range of rider weights, not very well, at least....
My 23mm Vittoria Rubino Pro have a pressure range of 100psi to 145psi written on the sides.
As I said, I inflate to 85psi front, and 120psi rear.
Seems fine to me.