According to the banner outside LeBus, on Main St., yes, Commerce does have naming rights.

I don't know about percentages and such, but a few years ago, when I did a reasonable amount of riding, with a mediocre bike, and was in ok shape for someone nearing 50, I decided I would ride up the wall before going on my usual ride out toward Norristown on the bikepath.
By the time I got to the top I thought I was going to blow my lungs out on the street. I coasted most of the way back home and lay down on the sofa.