I fitted a pair of Continental Grand Prix 4 Season 700x28 tyres at the weekend. Thinking that they looked a bit narrow I measured them with calipers and found that they are 25.5 mm wide. Measuring a Michelin Krylion Carbon 700x25 on another bike I found that it is 27 mm!
Do Continental tyres tend to come up narrow? I thought I was buying a fatter tyre which would be better on the occasional diversion along bridleways and gravel roads.