I put new shoes on the Fit yesterday, and a Progress anti-roll bar on the back. Tire Rack lists 195/55-16 as being the big tire for this generation of Fit, but Discount Tire was listing 205/50-16 as being okay. I think Tire Rack may have had it right, but I will update here. I found lots of info for the previous generation of Fit, but not so much for this one.
Wheels are Konig Runlite; tires are Pilot Sport A/S 3+. The steering wheel is pretty much centered in these pics.