Sorry if I've written it in a way that's easy to misunderstand, but what I meant is that there's a

*total *of 1 inch for each wheel. If the wheels were perfectly dished, that would be 0.5" on each side of every wheel, assuming my measurements were accurate (I did mym best with the ruler

).

The different between 2.15" (Big Ben or Big Apple Plus) and 1.5" (current tires) is 0.65", so even if I wasn't very accurate, they should still fit. Tomorrow morning I'll call the shop, and I'd like to know if you think I should worry about dishing the wheels for now (it will be a while before I get whatever tires I'll eventually order, since they'll be ordered from overseas).