They are probably overkill for the 1.6, and will slow accerelation down a bit due to the extra weight and the very slightly lengthened gearing.
They will affect the ride slightly, it will become a little harsher.
Turning circle will be lightly worse.
They won't disimprove the handling per se, more change the emphasis.
Traction off the line will be improved, although hardly an issue for you now I'm sure.
Cornering grip will be improved.
The immediacey of turn-in and steering feel will be slightly worse, but I would imagine cornering speed to be higher, and Alfas generally have very quick turn-in anyway.
Tyres will be more expensive.
Also you would have to inform your insurance company, although this should just be a trivial formality.
I don't believe 17"' tyres wear much quicker, (not sure if any quicker at all to be honest!)
I could get 20K out of a set on a GTA for road use.
Damo If they are wearing quickly and you are suffering uneven wear after 7 then I would suggest your tracking needs to be adjusted.
Don't know about the pothole theory, hadn't heard of it before
I would hazard that with good quality Alloys its unlikely to be a serious concern unless you drive on ridiculously bad roads!
Originally Posted by Irish147
Thinking of putting 17" alloys on my 147 but I have been told that they will effect the handling plus that bigger alloys flatspot easier if they hit a bump or pot-hole hard enough...is there any truth in this??