Originally Posted by
AnthonyG
There is no such thing as "low profile" bicycle tires. All bicycle tires are 100% profile meaning that they are as tall as they are wide. Low profile means that they are wider than they are tall but the only way you can make this happen is by having some stiffness in the construction that resists the force of the internal pressure to evenly expand the tire in all directions. Since bicycle tires are so light in construction there is nothing to resist even air pressure. Maybe a thick tread can change the profile slightly and as it wears it will wear the profile "flat" but this is minor and not a "feature" of high performance road tires.
Maybe in some theoretical universe you'd be correct, or perhaps it's true for tubular tires. but in the real world where a tube/tire profile is not really round (eg diagram below), the inflated height of a tire is generally always less than its inflated width as measured from the rim's edge. Here's a list of a lot of tires, each link brings you to a review where both the measured width, as well as height are provided. Good luck finding very many where they're the same and the width isn't in fact measurably wider.
https://www.bicyclerollingresistance...&min=6&minpr=6
