You were right. I went back and remeasured. I read the calipers wrong.

Thanks DJB for the detailed response. I appreciate your time. While I have had experience those many years ago, there's still a learning curve coming back to it. Here I thought 45 psi was low. I will try it down to 35 psi. Clearly we don't want tire fold over on turns. Playing with air pressure is a lot cheaper than buying new tires. I will try that first. It's a good point that I need to settle in on fine tuning my ride set up. BTW, I weigh 145 lbs.

I had a back surgery a few years ago, so I think I am hypervigilant when it comes to the feedback from the road surface. I want to be able to ride as long as I am able.

Cheers,

Rod