Originally Posted by
OneIsAllYouNeed
Of my personal tire collection at the moment, the best fits for you would be Conti GP4000S 28mm (30mm actual on 23mm A23 rim or 24mm Dyad rim) or Kenda Kwick Cross 700x30 (31mm actual on A23 or Dyad rims. Also it's a terrible 'cross tire, but quite nice on the road with side knobs trimmed).
Good call. Thanks again! So, I went and bought some calipers and tires...
Trimmed the knobs off the Kenda Kwick Cross 700x30, and it worked fine (although cornering hard at 25mph is a bit hairy with the knobs on the front tire).
Michelin Pro4 25mm, 28mm and Conti 4season 28mm all measure the same size (27mm as I recall).
How about that. A 25mm and a 28mm tire - same model and brand, are the same size (the 28mm does have a wider tread for lower pressures I presume)
GP4000s 28mm and Gatorskin wire bead 32mm measure the same at 29mm actual width.
How about that 28 mm and 32mm tire from the same manufacturer are the same size!
A new folding gatorskin 32mm measures 30mm actual width
A super rare conti 4 season in 32mm measures 32mm actual width.
That 28mm Conti GP4000s is an amazing tire. Light, very supple, sticky. I love it. Too fat for my rear, I need a smaller 28mm for the rear, but it makes a wonderful front tire.