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I have a concern with wheel/tire sizes... (archive)
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Posted by R.Mui on May 18, 2000 at 01:36:30:

on a used '95 740I that I am considering buying and thanks in advance for any help...
The car seems to be ok (haven't driven it yet but engine did exhibit a distinct lifter-like noise audible when standing outside the car with hood closed...is this normal?) with all the functions and interior/exterior is spotless.

However the rims are 18" BBS RC types (I didn't get the exact rim width but I'd bet they are 8" & 10" respectively) and the front tires are 245/45 ZR18 while the rears are 285/40 ZR18 Pirelli PZeros. Now I looked at the tire's sidewall but didn't notice any sidewall rubbing...could be hidden by Armour All?

Question is, is there any concern on this tire size with fender clearance? Especially under "loaded" conditions?

Another question is, can I safely mount narrower tires in the back's 18"x10" rims and yet maintain the correct rolling diameter? 285/40 18 tires aren't exactly cheap here in Hong Kong...

Thanks again for any input! =)

Rgds,

Richard



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