Tyre profiles 180 versus 190

As I said, maybe but I'm not so sure. Remember you're conversing with
someone who has never ever changed the suspension settings on any of
his bikes either. I just tend to get on and ride, without noticing
that one things is better than another.

What about Seasick Steve? Do you know him?

^
My first thought was "J? What does he mean?" followed by "Surely not
short for J Arthur" followed even more closely by "Ewwww" before I
finally twigged!

 

I almost never touch the suspension settings on a road bike unless
it has been set up to one extreme or the other or is bust.
So long as the spring, springs and the damper, damps within an
acceptable margin of functionality, it's good enough for the road.

Tyre radius changes, however, make a fundamental alteration to the
physical geometry and therefore, the handling characteristics of
the bike. You will notice a difference.

 

OK, already! I'll admit I was wrong[1]


[1] I'm still not 100% convinced, mind )

 

Have to say, the only change I noticed was the difference between worn
out and new. I'll be making sure the recommended size goes on next time
though.

 

I can tell the difference between a 180/50 and a 190/50 but not being
a slave to fashion I don't know about a 190/55.