On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
Re: 156 16in tyre sizes - confused
Your original tyres are the wrong size. You are correct in saying they should be 205/55 R16
I don't think you will gain much by fitting wider tyres on the standard sized rims TBH, except more tramlining, more road noise and worse aerodynamics. You also may have trouble with 225 width tyres clearing the suspension upright. It is very close with the standard width boots on.