Can anybody tell me the correct factory size for wither or both these size wheels please?
Can anybody tell me the correct factory size for wither or both these size wheels please?
225 45 18
235 35 19
Hi i've been asking the same on here & i've been told 235/40/18 are a better match to the 215/50/17 tyres & wheels on my sri. They're also slightly cheaper than 225/45/18's.
Not sure if this'll be ok but i'm sure the guys at AOC won't mind.
There's a Tyre Calculator on their home page that's pretty good
235/40/18 are -0.25% out so 70 on the clock is 69.83 mph
225/45/18 are +1.99% out so 70 on the clock is 71.39 mph
You'll have to have 8" wide rims to fit the 235's or they'll be stretched and won't fit that profile anyway, whereas the 225's will go on 7.5's without a problem.
These are the available choices:
Tyre code Diameter Circumference Difference
---------- -------- ------------- ----------
225/40 R18 637 mm 2001 mm -1.48 %
235/40 R18 645 mm 2026 mm -0.25 %
245/40 R18 653 mm 2051 mm 0.99 %
215/45 R18 651 mm 2045 mm 0.6 %
225/45 R18 660 mm 2073 mm 1.99 %
Last edited by stormspiel; 28th July 2010 at 08:38.
Sorry to invade thread but I still don't know what to stick on my 18inch snowflakes after theyve been refurbed what would you fit?
I have 235/40/R18's on my 18 inch snowflakes and they look perfect with those tyres, tyres are reasonable prices too
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