Might be getting some 15's cheap and am bored of steels,

what tyre size will I need to fit under mk3 arches lowered 40mm

et 38 (I think) and 6j wide.

and yes I know what you all say about 15's on a mk3 but hey ho :p

165/50s are the ones you want, they are fairly cheap too! had them on my mk3 square no scrubbage either!

yes i know the rims colour wasnt best suited to the colour of the polo, but i didnt intend on using them on it, the person i did the wheels for decided they didnt want them afterall, so i though sod it i'll put them on my square!

I have 195/45s on mine.

185/55s or 185/50s, whichever one the Mk2 Golf GTis with 15s have, will fit too.