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Paulcmccormack



Member Since: 23 Sep 2018
Location: Newcastle Upon Tyne
Posts: 48

United Kingdom 2010 Defender 110 Puma 2.2 CSW Zambezi Silver
Tyre width for rims. Offset and advice
HI All
Been doing a lot of research ad have come up blank so asking the ever knowledgeable people on here.

I have a defender 110 with 16inch OEM boost alloys (Black) with continental cross contact 235/85/16 tyres.
The information I've found is that the offset for OEM alloys is 33
I'm looking at increasing (or decreasing) the offset to 0 (or 10 at a push) to push the alloys out a bit and maybe change the arches.

My question is in relation to the tyres and alloy width required. Obvioulsy the alloy wheel width for a defender 16" tyre differs from a mini 16" tyre, so what width do you need to know when ordering a set of defender wheels.

Some of the sets on fleabay come with 265/75/16 tyres that are an inch wider. (Don't want these as I want all the turning circle available) but I'm assuming these tyres would fit on my current alloys as there is only an inch width difference.

I've seen on the web offset 10 alloys, but not offset 0. only 10mm difference, but anyone know of a decent wheel that is a lot more sticky out than the standard boost 33 offsets.

Anyone want my set of 5 boost black wheels. (Totally immaculate as from a 2014 vehicle with only 30k on it.,)

Cheers
Paul
Post #743706 3rd Dec 2018 12:25pm
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McGeordie



Member Since: 20 Feb 2012
Location: Central Scotland
Posts: 220

United Kingdom 2014 Defender 110 Puma 2.2 USW Montalcino Red
Hi, I have a set of Maxxtrac Manta 16s, they are ET10 offset, and ran with 265/75's, I think they were pretty much spot on. see photo. I might actually be thinking about moving them on. as they are now spares. Sold Def 90 HT 2010...Stornaway..(SOLD in Oct 2014)
Current: delivered October 2014:- 110 USW XS.....Montalcino Red
Post #743712 3rd Dec 2018 12:56pm
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McGeordie



Member Since: 20 Feb 2012
Location: Central Scotland
Posts: 220

United Kingdom 2014 Defender 110 Puma 2.2 USW Montalcino Red
Maxxtrac ET10

Click image to enlarge
 Sold Def 90 HT 2010...Stornaway..(SOLD in Oct 2014)
Current: delivered October 2014:- 110 USW XS.....Montalcino Red
Post #743713 3rd Dec 2018 12:57pm
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Green Machine



Member Since: 19 Nov 2010
Location: North Yorkshire
Posts: 1226

United Kingdom 2005 Defender 90 Td5 CSW Tonga Green
Do you want new wheels? If not, your simplest and cheapest option is to fit a set of 30mm wheel spacers to your existing alloys, which is what a lot of people do (myself included). 2005 Td5 | 90 Station Wagon | Tonga Green
Post #743718 3rd Dec 2018 1:31pm
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Paulcmccormack



Member Since: 23 Sep 2018
Location: Newcastle Upon Tyne
Posts: 48

United Kingdom 2010 Defender 110 Puma 2.2 CSW Zambezi Silver
HI all
Don't really need new wheels as the ones I have are perfectly suitable, however I think i can sell mine for roughly the same price i can buy some others, Only issues is a bit of time to list on fleabay. No actual cost difference as mine are genuine landrover OEM.

I've heard a lot of horror stories with spacers so was looking at the wheel offset option first as it's one less thing to go wrong.
I was going to keep the 235/85s as they are new and thinner so could hopefully give me a bit more turn.
I love the motor and it's a keeper for many many years. It's just a train to turn so was looking at option.

What alloy wheel width do you need for certain tyres or do the tyres just sit in any width rim? Is there a rule as I can't find it on any tyre or wheel websites.

Paul
Post #743730 3rd Dec 2018 2:02pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Tyre manufacturers will quote the recommended range of rim widths for a particular tyre. In general though a Boost alloy is good for anything from a 235 through to a 285, although the latter is somewhat controversial. If you are running 235/85 on Boosts your turning circle, assuming that the lockstops are correctly adjusted, should be about as good as it gets, and you may find that moving the wheels out to a 0 offset simply makes the articulation of the CV joints the limiting factor.

Paulcmccormack wrote:
I've heard a lot of horror stories with spacers...


Almost certainly these will be urban myths, since there is nothing inherently more or less dangerous with spacers as there is using wheels with a different offset. If you use a reputable make of spacer and fit them correctly, they are entirely safe.
Post #743739 3rd Dec 2018 3:07pm
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Paulcmccormack



Member Since: 23 Sep 2018
Location: Newcastle Upon Tyne
Posts: 48

United Kingdom 2010 Defender 110 Puma 2.2 CSW Zambezi Silver
Issue with spacers for me is i have no way to easily check the inner bolts without a lot of hassle. I suppose I could invest in a decent jack, but the drive is gravel and the jack I have is not man enough for the 2t defender.
it's just easier to only have to check and torque the main wheel bolts than remove the wheels and check the spacers.

I would have assumes manufacturers would quote this info, but I can't really see it anywhere on online websites or online wheel shops. hence the questions as i would have thought it was quite important.
Post #743757 3rd Dec 2018 4:20pm
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McGeordie



Member Since: 20 Feb 2012
Location: Central Scotland
Posts: 220

United Kingdom 2014 Defender 110 Puma 2.2 USW Montalcino Red
tyre and wheel size
Paul, just google (other search engines will work as well) wheel width and tyre size, plenty of options, here is just one: https://i.stack.imgur.com/jHVET.png Sold Def 90 HT 2010...Stornaway..(SOLD in Oct 2014)
Current: delivered October 2014:- 110 USW XS.....Montalcino Red
Post #743773 3rd Dec 2018 5:16pm
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Paulcmccormack



Member Since: 23 Sep 2018
Location: Newcastle Upon Tyne
Posts: 48

United Kingdom 2010 Defender 110 Puma 2.2 CSW Zambezi Silver
Thanks McGeordie
That's 90% of the puzzle and just what i was looking for. Many many thanks
I just wish all websites would add the rim width in the details.
Very few seems to put on their websites.

You're a star
Paul
Post #743795 3rd Dec 2018 6:32pm
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Paulcmccormack



Member Since: 23 Sep 2018
Location: Newcastle Upon Tyne
Posts: 48

United Kingdom 2010 Defender 110 Puma 2.2 CSW Zambezi Silver
Hmmm

https://www.4x4tyres.co.uk/16-oem-style-bo...assis=5467

has boost alloys with a width of 7 inches and the tyre package comes with 235/85/16...

Totally contradicts the above info...
Post #743799 3rd Dec 2018 6:45pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17378

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
There's some very hooky information in the link in McGeordie's post - to say it is conservative is an understatement. I'd be looking for more reliable and contextualised figures.

Absolutely no problems going up to 265s on Boosts (at one time this was a factory option), and many of us have run 285s without problems.
Post #743804 3rd Dec 2018 7:05pm
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Piggy501



Member Since: 27 Sep 2017
Location: Scotland
Posts: 56

Scotland 1996 Defender 90 300 Tdi PU Arrow Red
I would say McGeordie's link relates more to road cars and tyres with shorter sidewalls than it would for 4x4 tyres, and while it shouldn't be disregarded totally, could perhaps be used as a very conservative estimate.
Post #744412 6th Dec 2018 9:44pm
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