Originally Posted by
Lombard
Precisely my point that 28" isn't an actual size. It is based on a particular width of tire.
Hard to argue that 28" isn't an "actual" size when at least one current and a number of former bicycle tire manufacturers have sold tires clearly labeled 28". Again:
Quoting from the Sheldon Brown tire size chart, for "28 x decimal":
Some German tire companies use this non-standard designation for 622 mm ("700C").