Looking for advise on changing tire sizes
I have a 2013 Cooper S with Continental 205/45/17s run flats. I live in metropolitan NY city area and the roads are horrible. I would like to improve the ride. I see Continental make the same tire in a bigger side wall 205/55/17. Does anyone have experience in going to a wider side wall, will it fit the car? My local mini dealer will not opine on the topic. Any advice would be appreciated. Also any knock on issues with regard to changing tire size, i.e. speedometer adjustment, would be appreciated as well.
Thanks in advance.