hi guys, at the moment iv got 17inc o.z alloys on my car witch was on ther when i got it but i wont to go back to standed size, could any body tell me the standed size on the cups, also im looking to lower the car as well but dont wont to be draging on speed hump all the time. so also how low would i be able to go on standed wheels with out leaving the car looking like a 4x4 i wont as less gap in the archs as poss.