Read the sidewall information.

yes, its just a touch slimmer from sidewall to sidewall. its ok.

The sidewall is the part of the tire that is mostly facing towards the side. Between the rim bead, ant the tread pattern.

Most pro shops won't repair anything on the sidewall for safety reasons & repair may not hold due to stresses there.

In general, the narrower (or shorter) the sidewall, the stiffer the ride. That's because the short sidewall flexes less than a longer sidewall. It's something like comparing a short, stiff spring to a long, soft spring.

But also in general, a narrow sidewall improves handling for the same reason. Because a short sidewall has less flex, turning the steering wheel will create a more immediate response at the tire and wheel.