Will 215 40 18 tyres be ok

[jaffa666]

as title suggests would 215 40 18 tyres be ok to put on the golfs 18's i know they come with 225 40 18s but was just wondering if putting 215s on would make any difference.

reason I ask, is a mate of mine has a set of pirelli pzeros that that he is selling in 215s, so was just thinkin about them, but dont want to put on if there going to effect anything?

cheers in advance!!!