Here's a little background I was riding to work made a stop, proceeded with the right of way then a car decided it didn't need to see bikes in the intersection, thought it was safe, then didn't stop and ran right into my front wheel.
So prior to this I had a mavic open pro rim. which is 19mm, with a schwalbe marathon 32mm tire.
I just bought a replacement wheelset and it uses sun rhyno lite rims which are 27mm.
What kind of change in tire profile/performance will I see. I know now that the tire seems too tall and would almost rub my fenders when they were new. Now that they have like 1500 miles they are a little more squared off on the apex but nontheless look like they have thousands of miles left.