Tyres sizes comparison chart?

People Hi,

does anyone know of an internet or published tyres sizes comparison chart?

I am really confused with the size and dimensions comparison between the
ordinary sized (eg 205 X 16" or 235 X 85 X 16") tyres and the truck sizes
number (35 X 12.5 X 17") that mainly our big tyres sized off roading
brothers use.

Mainly interested on the diameter and circumference and ordinary tyre size
comparison for a 35 X 12.5 X 17" tyre but a chart would be extremely
helpful.

I know for example that a 235 X 85 X 16 tyre is the same size as a 33 X 11.5
X 15 tyre but that is all.

thanks in advance for your kind input

Take care
Pantelis Giamarellos
LAND ROVER CLUB OF GREECE

On or around Thu, 15 Sep 2005 14:22:10 +0300, "Pantelis Giamarellos"
<[email protected]> enlightened us thusly:

>People Hi,
>
>
>Mainly interested on the diameter and circumference and ordinary tyre size
>comparison for a 35 X 12.5 X 17" tyre but a chart would be extremely
>helpful.
>
>I know for example that a 235 X 85 X 16 tyre is the same size as a 33 X 11.5
>X 15 tyre but that is all.

case 1: crossplies. typical size: 7.50x16. rim is 16" diameter (the bit
the tyre mounts on, natch) and the tyre nominally both 7.5" wide and tall.
hence overall diameter is 16+7.5+7.5 = 31".

case 2a: "standard" radials, in EU mostly. typical size: 205R16. rim is
16", tyre is nominally 205mm wide and 82% of 205mm tall. overall diameter:
16+(205*0.82*2/25.4) = 16 + 13.2 = 29.2"

case 2b: radials with other profiles: typical size: 235/70R16. rim is 16",
tyre is nominally 235mm wide and 70% of 235mm high. as above, o/d is
16+(235*.7*2/25.4) = 16+12.95 = 28.95"

case 3: american-style size radials: typical size: 31-10.5R15. rim is 15",
o/d of tyre is 31" nominal, width of tyre 10.5" nominal.



you mention 235/85R16 - o/d for this is 16+(235*.85*2/25.4) = 16+15.7 =
31.7"
closest match in US-style size on 15" is 32-9.5R15


I guess I could have a crack at a chart, at that. gimme a few days, if
no-one comes up with one.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"The great masses of the people ... will more easily fall victims to
a great lie than to a small one" Adolf Hitler (1889 - 1945)
from Mein Kampf, Ch 10

"Pantelis Giamarellos" <[email protected]> wrote in message
news:[email protected]...
> People Hi,
>
> does anyone know of an internet or published tyres sizes comparison chart?
>
>


Type 'tyre size calculator' in MSN or Google and you will be spoilt for
choice.

Huw

Huw wrote:

> Type 'tyre size calculator' in MSN or Google and you will be spoilt for
> choice.

Trouble is you end up with these things with so many bloody variables
you can't work out what you want !

We're still hunting for "9X16" alternatives. What WILL fit on a 101's
rims ? And not look silly and/or need wheel arch extensions.....

Steve

"steve Taylor" <[email protected]> wrote in message
news:[email protected]...
> Huw wrote:
>
>> Type 'tyre size calculator' in MSN or Google and you will be spoilt for
>> choice.
>
> Trouble is you end up with these things with so many bloody variables
> you can't work out what you want !
>
> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
> rims ? And not look silly and/or need wheel arch extensions.....
>
> Steve

Ah well! I can lead a horse to the water but I can't make him drink

Huw

steve Taylor wrote:

> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
> rims ? And not look silly and/or need wheel arch extensions.....

Am I right in thinking that 9 x 16 have 100% aspect ratio ?

Steve

"steve Taylor" <[email protected]> wrote in message
news:[email protected]...
> steve Taylor wrote:
>
>> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>> rims ? And not look silly and/or need wheel arch extensions.....
>
> Am I right in thinking that 9 x 16 have 100% aspect ratio ?
>
> Steve

From http://www.juracid.co.uk/lr/index.php?do=data/britishtyres.html

9.00x16 are 100% aspect ratio which is metric 250/100r16. The nearest actual
metric size is 315/75/16 which is usefully wider than standard.
For other compatible sizes, enter 250/100r16 into one of the common
calculators and any alternative you like to see whether they are suitable
from the gearing aspect.

Hope that helps.

Huw

Huw wrote:

> From http://www.juracid.co.uk/lr/index.php?do=data/britishtyres.html
>
> 9.00x16 are 100% aspect ratio which is metric 250/100r16. The nearest actual
> metric size is 315/75/16 which is usefully wider than standard.
> For other compatible sizes, enter 250/100r16 into one of the common
> calculators and any alternative you like to see whether they are suitable
> from the gearing aspect.
>
> Hope that helps.

AH ! Thanks Huw, that does help a lot.

Steve

Heres one I found to be very informative.
http://www.carbibles.com/tyre_bible.html
Tony

"Huw" <hedydd[nospam]@tiscali.co.uk> wrote in message
news:[email protected]...
>
> "steve Taylor" <[email protected]> wrote in message
> news:[email protected]...
>> steve Taylor wrote:
>>
>>> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>>> rims ? And not look silly and/or need wheel arch extensions.....
>>
>> Am I right in thinking that 9 x 16 have 100% aspect ratio ?
>>
>> Steve
>
> From http://www.juracid.co.uk/lr/index.php?do=data/britishtyres.html
>
> 9.00x16 are 100% aspect ratio which is metric 250/100r16. The nearest
> actual metric size is 315/75/16 which is usefully wider than standard.
> For other compatible sizes, enter 250/100r16 into one of the common
> calculators and any alternative you like to see whether they are suitable
> from the gearing aspect.
>
> Hope that helps.
>
> Huw
>

Width % Profile Rim Size Tyre Diameter Tyre Circumference
175 80 16 27.024 84.897
205 80 16 28.913 90.834
235 70 16 28.953 90.958
255 65 16 29.051 91.267
225 75 16 29.287 92.009
245 70 16 29.504 92.689
235 75 16 29.878 93.864
7 16 30.000 94.248
255 70 16 30.055 94.421
215 85 16 30.390 95.472
245 75 16 30.469 95.720
265 70 16 30.606 96.153
7.5 16 31.000 97.389
275 70 16 31.157 97.884
265 75 16 31.650 99.430
235 85 16 31.728 99.678
255 85 16 33.067 103.883


Regards

Brian Tonks
Tonks4x4
27-29 Main Street
Huthwaite
Sutton-In-Ashfield
Nottinghamshire
NG17 2LD
01623 452885

http://www.tonks4x4.com

On or around Thu, 15 Sep 2005 21:30:17 +0100, steve Taylor
<[email protected]> enlightened us thusly:

>steve Taylor wrote:
>
>> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>> rims ? And not look silly and/or need wheel arch extensions.....
>
>Am I right in thinking that 9 x 16 have 100% aspect ratio ?


yes.

there are some, I believe, something like 235/100R16, or somesuch.

failing that... something like 35-10.5R16 if they're available. wider ones
are certainly available, but would make steering a bit like work without a
PAS conversion.

Coo:

http://www.bronco4x4.com/

has a thing about "silverstone extreme", which looks a handy tyre, and lo!
is available in 35-10.5R16. 158 quid a shot, mind.

If that's a bit pricey, you can have a cheapo called danubiana, for 86
quid... in 900x16. speed rated at 80Km/h though.

There are also simexes in 35-10.5R16 and 34-10.5R16, but they're really
expensive.





--
Austin Shackles. www.ddol-las.net my opinions are just that
"My centre is giving way, my right is in retreat; situation excellent.
I shall attack. - Marshal Foch (1851 - 1929)

On Thu, 15 Sep 2005 21:08:14 +0100, steve Taylor
<[email protected]> wrote:

>Huw wrote:
>
>> Type 'tyre size calculator' in MSN or Google and you will be spoilt for
>> choice.
>
>Trouble is you end up with these things with so many bloody variables
>you can't work out what you want !
>
>We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>rims ? And not look silly and/or need wheel arch extensions.....

A fair few people have gone for 255/85r16. Its what im putting on mine
once i get round to working on it!

They differ very slightly from the 9x16s (a tad smaller). But are
about as close as you can get while being a standard tyre size.

You can buy this size from craddocks and other tyre places.

Here are some pictures of the same ambi (Hobbes) with bargrips and
then 255/85's on it. Pictures stolen from the 101 list.

http://www.zen68482.zen.co.uk/101/tyres/

quoted from the 101 group:

>> So I thought I'd ask if I may, what tyre/wheel/tube combos do people
>> actually have (those who aren't using bargrips) and what are your
>> experiences?
>>
>Wildcat LT 255/85/16s on tubes and stock wheels. Now on 3,000
> miles and well impressed with the whole performance. Mild
> mannered and quieter on tarmac, good on wet grass & snow,
> remarkable on slate and gravel tracks fair on clay/chalk mud.
> Also have not seen any difference in performance regarding
>slightly different height (old bargrips were so worn they were the
>same height I suspect) except I can go faster because my
>eyeballs don't get shaken out and my ears don't bleed any more.
>
>As previous posts, make sure any irregularities inside the tyre
>wall are removed before fitting with tubes to prevent chafing.
>Craddocks are(unfortunately) well versed in most off road
>tyres and their fitting.
>
>Cliff

On Fri, 16 Sep 2005 09:53:36 +0100, Austin Shackles
<[email protected]> wrote:

>On or around Thu, 15 Sep 2005 21:30:17 +0100, steve Taylor
><[email protected]> enlightened us thusly:
>
>>steve Taylor wrote:
>>
>>> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>>> rims ? And not look silly and/or need wheel arch extensions.....
>>
>>Am I right in thinking that 9 x 16 have 100% aspect ratio ?
>
>
>yes.
>
>there are some, I believe, something like 235/100R16, or somesuch.

Its tricky to find anything with a 100 sidewall in the UK. I've been
looking.

>http://www.bronco4x4.com/
>
>has a thing about "silverstone extreme", which looks a handy tyre, and lo!
>is available in 35-10.5R16. 158 quid a shot, mind.
>
>If that's a bit pricey, you can have a cheapo called danubiana, for 86
>quid... in 900x16. speed rated at 80Km/h though.
>
>There are also simexes in 35-10.5R16 and 34-10.5R16, but they're really
>expensive.

proper 255/85's can be had for £80-£100 per corner, which aint too
bad.

On Thu, 15 Sep 2005 21:30:17 +0100, steve Taylor
<[email protected]> wrote:

>steve Taylor wrote:
>
>> We're still hunting for "9X16" alternatives. What WILL fit on a 101's
>> rims ? And not look silly and/or need wheel arch extensions.....
>
>Am I right in thinking that 9 x 16 have 100% aspect ratio ?
>
>Steve

In theory yes.

Trouble is 9 x 16 can actually mean lots of different sizes. My 9 x
16 Petlas tyres were much larger than the mil bargrips that came off,
even allowing for the tread wear. So it can be a bit of fun working
out what size you need.


--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'03 Volvo V70

so wheres the fookin chart....google ?

wot is this? raise the dead nite?

google search fer tyre compare arse on !

Series71 said:

so wheres the fookin chart....google ?

Click to expand...

You've had 6 years to find it.......

why ? this fred is sept 2005 :doh:

ok closest tyre size to a 7.50 x 16 is ?