Today a buddy of mine who owns a very junky Suzuki (can't remember the model name, Firenza/Forenza maybe?) said he was going to scrap it by the end of December or next year and offered me the wheels on it which are only 3 years old @ $50/tire! Still waiting on his OK to nab a tire or two off for my very old spare (so old in fact it can go down to the store and pick up some wine! ) I went over there today to test fit it and it did fit but under one underlying issue:

It needs a sort of hub ring? that goes inside the rim can't remember the name but something that goes inside where the hub hole for the wheel is since its a bit larger than my Vans hub mount thing on the rear. Should've checked the front when i was there too but oh well next time I guess!

Does anyone know the diameter of this (and what it is!) and where to find some? Think he said Harbor Freight but I'll drive over there sometime again and ask...