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      05-24-2018, 09:04 AM   #52
Mandinca
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Drives: 2008 E88
Join Date: Sep 2017
Location: CT

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Quote:
Originally Posted by titium View Post
drop to a 225 tyre. 235 isn't ideal for a 7.5" rim really needs a 8" rim.

the profile is a percentage of the width so dropping to a 225 will also lower the profile height (even though they're both 40 profile).
Exactly what I was thinking. A 225/40 only gains 4mm but a 235/35 gains 11mm. A 225/35 gains 15mm

Ie-
235x40% = 94mm (current tire)
235x35% = 83mm
225x40% = 90mm
225x35% = 79mm

I don't think 225x40 is going to be enough (4mm) so it looks like the 235x35 would give enough clearance (11mm) but not be an ideal width. 225x35 might look too small.
Dunno. Food for thought.

Thanks.
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2008 E88 N54 135i / Cashmere Silver / Beige leather / VRSF catless DP's / BMW Performance Suspension / Whiteline inserts / Aluminum charge pipe and aftermarket BOV