Разница в диаметре колес составит не 2 дюйма, а 3-4 при покрышках одинаковой ширины (и высотыBoth designations, 26" and 700C indicate tire diameters that are only nominally related to the actual diameters commonly used. Most of the 700C tires in use today on road bikes are about 675 to 680mm in actual outside diameter, (not 700). The rim size is the same as that used on zillions of working-class bikes around the world, although their tires measure around 710mm. The 26" size that most of us are familiar with is descended from American balloon-tired bikes, which had tires about 1.75" wide and actually measured at about 26". When narrower tires are used, the overall diameter invariably changes too, as the tire assumes a relatively round cross-section no matter what kind of casing is used. Amazingly, on a 26" wheel, the small 1" or 1.25" tires can result in a diameter of little more than 610mm, (24").
).Ничего страшного, но для того чтобы не нарушить геометрию (а может получиться слишком тупой угол рулевой) - придется использовать длинноходовую вилку.
)))))