Member Since: 11 Jul 2007
Location: up Norf
Posts: 14
17" All Terrain Tyres
I know this has probably been covered to death somewhere.
I'm swapping my 19" Wheels for 17" items just bought on the bay for Winter. Please can someone tell me what the correct size AT tyre is (265/65/17 I think) and will I have any problems with rubbing.
I used to use BFGs before on my D2 which were perfect for what I need but they don't seem to import that size. Anyone suggest a good alternative?
18th Oct 2010 5:10 pm
AJS4X4
Member Since: 30 Mar 2008
Location: Surrey
Posts: 3224
265/65x17 seems most popular for us in Surrey.
No problems with rubbing.
Andy.
18th Oct 2010 5:12 pm
Bushwanderer
Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050
The "correct" tyre size for 17" wheels is 235/70R17.
However, I would be prepared to take AJS' adviceThe Bearded Dragon
19th Oct 2010 2:06 am
Chelsea T
Member Since: 11 Jul 2007
Location: up Norf
Posts: 14
Well this is why I threw the question out.
As I understand it, cars with 17" as standard have 265/70. However, mine had 255/55/19 as std and according to various convertors 265/70/17 is +5.2% whereas 265/65s are almost the same rolling diameter as mine.
What's going on? Either 255/55s are too small for the speedo, 265/70s are way too big or speedo settings are different for cars with different factory wheel sizes.
Yes, per Bushwanderer's post, I've got 235/70R17 111H; the tyre rolling radius calculator tells me that these are within a fraction of a percent of the size of my 19" scorps.
That's also the standard size as recommended in the Wiki.
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
as said correct size is 235/70 R17 giving a circumference of : 2390.12mm
245/70 R17 are as close a match to the original circumference as I could get - for offroad tyres
giving a circumference of 2434.1mm - a difference of 1.84%
I use cooper discoverer ST and STTs - some say the STs are no good in the wet and ice, but in my experience they have been excellant, from icy motorways to the frozen snow of the Crosiere Blanc and the fresh snow of Aviemore
But AJS are the experts so I'm sure you'll get the right advice and price from them Duncan
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19th Oct 2010 8:48 am
Chelsea T
Member Since: 11 Jul 2007
Location: up Norf
Posts: 14
Thanks for all the info guys. Some useful bedtime reading!
I'm still confused though by the different wheel circumferences between stock 17" and stock 19" using this calculator;http://www.miata.net/garage/tirecalc.html
1. STD road tyres for both rim sizes are roughly equal
2. If I want to move to ATR 265/65/17 is a closer match than 265/70/17 but that seems to contradict the info you guys have got.
I don't want to get too hung up about it but >5% difference seems quite a lot and will surely give speedo errors and more chance of rubbing?
Last edited by Chelsea T on 19th Oct 2010 11:21 am. Edited 1 time in total
19th Oct 2010 8:56 am
CMG
Member Since: 12 Jul 2010
Location: USA
Posts: 956
245/70 from what I've heard works, no rubbing.
As for the speedo- with Jeeps the dealer can just reprogram them, so it might be the same with LR?17 Discovery 5 HSE Si6, Fuji White on brown | 07 LR3 SE 4.4 Java Black on Alpaca
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19th Oct 2010 11:02 am
desmo
Member Since: 16 Mar 2009
Location: Athens
Posts: 19
Hi all
255/65/17 is the closest radius to 235/70/17 ,i found nokian vativa at 255/65/17 110s, i know not the perfect choise but pretty good all whether and at tyre. there is also 235/70/17 111/s xl but not found when i was looking for
19th Oct 2010 5:52 pm
CMG
Member Since: 12 Jul 2010
Location: USA
Posts: 956
I have a friend with those on his Jeep. He seems to like them pretty well.17 Discovery 5 HSE Si6, Fuji White on brown | 07 LR3 SE 4.4 Java Black on Alpaca
Club V8/Club OCD
19th Oct 2010 8:09 pm
Simons17
Member Since: 12 Aug 2010
Location: beverley north yorkshire
Posts: 233
sorry to but in i have just fitted 265/65 tyres to my 17s on AT tyres how far does it throw the speedo out ??
and which way
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