TOO BADD
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| posted on 22/6/08 at 10:10 AM |
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Tyre width vs rim width
I am using Revolution wheels with Yoko 32's and the fronts are 6x15 ( 195 50 15 ) and the rears 7x15 ( 225 50 15 ) on my ST. I have just bought
a new rear set of tyres for the rear which are Toyo 888 ( 225 50 15 ) as the old ones are nearly illegal.
I intend to fit the new tyres with Revolution 3 piece and keep the old ones for track times. Question is the recomended rim width for these is
7" but I was going to order 8" There seems to be a lot of racers with wide rims and wondered if anyone has experienced ( or knows ) of
different handling characteristics rim/tyre width will give. The old 7" do seem slightly on the narrow side for this tyre but maybe this is a
better setup as the car is light !
Thanks for any views.
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britishtrident
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| posted on 22/6/08 at 10:32 AM |
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Generally if the rim is at the wide end of the fittment range for the tyre size it will give better more responsive handling than a wider tyre on a
rim which is at the narrow end of the fittment range.
The reason is a wide rim supports the tyre better, on a narrow rim the tyre can roll about a bit.
[Edited on 22/6/08 by britishtrident]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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TOO BADD
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| posted on 22/6/08 at 11:03 AM |
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Thanks for the reply. Looking at the post about Escort rims it seems that 71/2 " would be a perfect width 225 x 85% = 191mm = 71/2 "and
the fronts need to be 61/2 "
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iank
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| posted on 22/6/08 at 03:32 PM |
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Most (quality) manufacturers have recommendations on the rim widths they consider acceptable for a specific tyre. If you're outside that
recommendation guarantees (and possibly insurance) may be considered invalid.
Yokohama publish this list for their tyres.
http://www.yokohamatire.com/customer_service/customizing_width.aspx
-> 225/50R15 6.0-8.0
Toyo are here
http://www.toyo.co.uk/productdetail.php?identity=products&product_id=18
But they don't list a 225 for that fitment. If you've got 215 50 R15 then 7.5" is the max recommended.
So you'll be fine with 8" if they are 225 IMO
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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RK
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| posted on 22/6/08 at 03:42 PM |
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I've got 8" rims with 215 tyres. They fit fine.
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