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tomm



Member Since: 10 Mar 2016
Location: london
Posts: 25

United Kingdom 2012 Defender 110 Puma 2.2 USW Zermatt Silver
BFG AT 235/75/16 vs 265/75/16
I am about to replace the knackered contis with BFG ATs on standard boosts. I don't want to make an expensive mistake and I am deciding between 265/75/16 and 235/75/16

Here are my assumptions:
- From what I can tell in other threads both size are correct for the speedo.
- As the offset will be the same the turning circle will be much the same on both tyres however the lock stop will need to be adjusted to avoid rubbing against the giblets.
- 265's

The first question is usually what are you using it for? Mostly on the road 95% it has branding on it looks good and gets attention for our business. So a key driver is aesthetics (putting my armour on now as the purists come in with spears))

Anyway, anything else I'm missing?

Cheers!
tom
Post #532674 18th May 2016 3:18pm
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Likeomg



Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2646

2010 Defender 90 Puma 2.4 HT Stornoway Grey
not missing much, theres really not much difference between the two... personally id go for 265 as i prefer the wider chunkier look
Post #532677 18th May 2016 3:22pm
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DuncanS



Member Since: 06 Dec 2013
Location: Cumbria
Posts: 299

United Kingdom 2008 Defender 110 Puma 2.4 USW Santorini Black

Click image to enlarge


Running 265s on mine. No rubbing and no lock requiring adjustment. It previously had 235s on. Also to note, you mention 235/75 whereas your comparison should be to 235/85 which has the same diameter as the 265/75

cheers North Cumbria Search and Rescue - Team Leader
Post #532678 18th May 2016 3:22pm
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jaygti



Member Since: 04 Nov 2012
Location: essex
Posts: 378

United Kingdom 2002 Defender 90 Td5 HT Epsom Green
Yes your assumptions are correct.
The inside edge of your tyres will only be 15mm nearer with 265s , so you may not have to adjust anything.

I prefer the look of 265s personally. 2002 td5 90 county hardtop
Post #532679 18th May 2016 3:26pm
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tomm



Member Since: 10 Mar 2016
Location: london
Posts: 25

United Kingdom 2012 Defender 110 Puma 2.2 USW Zermatt Silver
Brilliant! thanks all, have ordered the 265s Smile
Cheers!
Post #532681 18th May 2016 3:33pm
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CarMan



Member Since: 29 Nov 2010
Location: Cotswolds
Posts: 1869

United Kingdom 
Hope I haven't missed the point here but I think the two comparable Defender sizes usually are 235/85/16 and 265/75/16 Thumbs Up

Edited: Captain slow here!
Post #532700 18th May 2016 4:37pm
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JOW240725



Member Since: 04 May 2015
Location: Suffolk
Posts: 7908

United Kingdom 2012 Defender 110 Puma 2.2 XS CSW Orkney Grey
Ok I'm a little late to the party here but in the same quandary myself...

I'm erring towards the 265 on a looks basis but would the 235 be quieter. more economical and better off road (cut deeper into the mud)?


Click image to enlarge


Not mine but 265 KO2 on boosts looks pretty good I think! James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html
MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641
MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557
Instagram @suffolk_rovers
Post #532702 18th May 2016 4:45pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20494

United Kingdom 
I have 235KM2's.
Never had an issue, they look good too and work superbly in all conditions.
Would I go wider? Possibly, it'd be a hard decision to make.

Yes, slightly narrower can cut in more than wider.
Either has advantages and disadvantages to a minor degree.
Fuel consumption wise, wider will use a touch more but likely to be negligible I'd have thought.
Post #532704 18th May 2016 4:52pm
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Cupboard



Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

United Kingdom 2011 Defender 110 Puma 2.4 HT Corris Grey
Yes on all accounts, the wider you go the more mud you splash up your doors too.

Wider is better for cornering.

I'm a definite narrow tyre believer, the higher the profile the better.
Post #532708 18th May 2016 5:04pm
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CarMan



Member Since: 29 Nov 2010
Location: Cotswolds
Posts: 1869

United Kingdom 
235/85's on both of mine, but actually I do think it is a marginal call if you look at the numbers even though they do seem to look quite different - interesting egh ? Rob

1993 200tdi 90 hard-top
1998 300tdi 90 soft-top
2016 2.2 XS 90 hard-top (sold)
Post #532709 18th May 2016 5:10pm
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Cupboard



Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

United Kingdom 2011 Defender 110 Puma 2.4 HT Corris Grey
Comparing my 7.50 Michelins to a 265 BFG KO2 I know I had a lot more control in sticky gloop, and that's my car with no traction control vs one that did have traction control. The KO2 had more tread and it looks more aggressive but I know which one I'd take.
Post #532710 18th May 2016 5:24pm
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jaygti



Member Since: 04 Nov 2012
Location: essex
Posts: 378

United Kingdom 2002 Defender 90 Td5 HT Epsom Green
I went from 235/85 to 285/75, and the difference in fuel economy was small.

Instead of 30-32mpg it was 28-30mpg.
So 235 to 265 would be even less.

As regards ability in the mud- it depends.
Narrower tyres definitely cut through to hard ground better, but conversely sometimes you can dig yourself in rather through the mud if there is no real hard ground.

Unfortunately all tyres are a compromise of sorts.
Driver skill will overcome many problems ultimately .
I was constantly get stuck with 235 a/t's but rarely get stuck now with 285's , but I used to be hopeless, I've got the hang of it a bit now after 4 years. 2002 td5 90 county hardtop
Post #532714 18th May 2016 5:58pm
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camelman



Member Since: 27 Feb 2013
Location: Peak District
Posts: 3382

United Kingdom 
jaytgi - you need to consider that the 285/75 is approx. 4% taller than the 235/85 so you speedo will now be reading 4% less than it was before, so your mpg probably hasn't changed by as much as you think Smile 
Post #532746 18th May 2016 7:29pm
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jaygti



Member Since: 04 Nov 2012
Location: essex
Posts: 378

United Kingdom 2002 Defender 90 Td5 HT Epsom Green
Of course your right!
My feeble brain is now wondering if that means my mileometer will also read less than my true mileage😀 2002 td5 90 county hardtop
Post #532757 18th May 2016 7:42pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20494

United Kingdom 
IIRC the Defender speedo as standard shows approx 2mph more than your actual speed.
A sat hav further shows this often or not.
Post #532766 18th May 2016 7:52pm
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