I'd like to add Specialized Road Sport 27x1 ¼, which I bought in 2018 for my 1952 Rudge Aero Special with original steel Dunlop rims. These wire-bead tires sit beautifully on the original nearly 70 year-old rims. The bike is being cleaned and over hauled, and so the tires have been under pressure on the rims for at least a year, still with decent pressure, starting from 90 psi inflation. Weight 500 grams, 60 tpi, width is actually 32 mm. Bike is not ready, so no ride experience as yet.