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Why are 245/45/16 tyres so big?
Posted: Thu Sep 19, 2013 6:29 pm
by 106pete
I've just fitted my 9j rear supra wheels and found the tyres are massive! Even tho technically they should be the same just wider....
This is my 16x8 wheel with 225/45/16 next to the 16x9 245/45/16 tyre
Not a great pic but overall the difference is around 20mm but why??
Posted: Thu Sep 19, 2013 6:35 pm
by Donald
Because the profile is a percentage of the width. Increase the width but keep the percentage the same = larger profile.
Posted: Thu Sep 19, 2013 6:36 pm
by lewd lude lover
yep. you would need to go down to something like a 245/40 16 to retain the same profile.
Posted: Thu Sep 19, 2013 6:37 pm
by Donald
You currently have 18mm difference
The closest you can get is 245/40 but then you will be 7mm smaller.
Posted: Thu Sep 19, 2013 6:40 pm
by lewd lude lover
and thus less manly...
Hmmmmmmm, difficult.
Posted: Thu Sep 19, 2013 6:45 pm
by wurlycorner
Indeed.
It's a ratio.
(Ask Donald about Ratio's - he's our expert on them it would seem, provided they're a 1:2 ratio (or is that 1.2 ratios?
)
Posted: Thu Sep 19, 2013 6:57 pm
by 106pete
Ahhh I always thought it was a size not a percentage.
Nice one, thanks guys
Posted: Thu Sep 19, 2013 7:34 pm
by NafemanNathan
That is all
Posted: Thu Sep 19, 2013 8:05 pm
by Doobie
At least this one wont go to 14 pages...
Posted: Thu Sep 19, 2013 8:10 pm
by NafemanNathan
Or will it?
@Donald