215 is only 10 mm wider meaning 1 cm.
it takes 2.5 cm to make 1 inch. approx....
so your only widening the tire by 0.4 inches just under 1/2 an inch.... i wouldn't see a reason that it would hit anything... as you are only widening the tire by 0,2 inches on each side of the rim...
0,2= 1/4 of an inch
Next set of tires I am getting will be 215... it just might save a little of the rim when the curb gets too close... LOL
Jc