What is the largest size wheel and tyre i can fit to my E30 BMW without having to modify anything?

I want to fit some alloy wheels to my E30 BMW 316 and want to go as large as possible without having to modify the arches. The suspension i not lowered and everything else is standard. I would like to fit maybe 17 or 18" rims if poss. can anybody tell me if they will fit with no problems?What is the largest size wheel and tyre i can fit to my E30 BMW without having to modify anything?william is a moron. 20s will not go on an e30. (i've tried on a 325ix, and a 88 M3.) 17s or 18s should go on easy....18s may need a little fender rolling, but thats easy enough if you have a baseball bat. Just stick the handle end of the bat inside the wheel well, using the tire as leverage, gently roll the sheet metal on the inside of the well with the bat. Also make sure you get the right offset on the rims.What is the largest size wheel and tyre i can fit to my E30 BMW without having to modify anything?bmw E30, 16 iches 4x100-108 ET15-20 is best one to be fixed,

that is why BMW does not accept neither 5 holes nor hight ETs or hight inches,thnx.

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What is the largest size wheel and tyre i can fit to my E30 BMW without having to modify anything?You can have problems with anything from 15" up depending on the offset and tyre profile! I had an E30 with beautiful 16" Alpina wheels that scraped on the guards. Once I rolled the rears it was ok but the profile was 45 and really expensive per tyre. You also need to be aware that the E30 was designed in the early 80 and is not really for ultra low profile tyres. It will ride like crap and follow every ridge in the road (tramline) on anything other that smooth roads.Personally I have seen 17's used with some success however the best bet (I think) would be to go to a friendly tyre dealer and ask their advise. Seriously though BEWARE of the offset! Hope thats some help.What is the largest size wheel and tyre i can fit to my E30 BMW without having to modify anything?
20's are the biggest and no modifying anything

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