Currently I have 17" x 7.5" rims, and 235/45/17 tyres on the rear and 215/45/17 on the front. (I wanted 235 all round, but there was not enough clearance between the tyre and the strut tower on the front).
I am getting rid of those rims for various reasons, and the shop has many more new rims available in the 17" x 7" size. The shop guy said that 235mm tyres on a 7" deep rim was not a good idea and I may have increased tyre wear and reduced traction. What is the optimal tyre size for the 7" rim?
Also, will there be any difference to my front wheels with the 7" rim instead of the 7.5" (same tyre size, 215mm). I have about
1.5 degrees of camber on the front. I imagine the 7" version will stand a little taller ? (greater overall wheel diameter). How will this affect traction and handling?