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Skinniest 33" tyre

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Skinniest 33" tyre

Post by me3@neuralfibre.com »

I want to change the cruiser to 285/75/16's (33"), but with the spare underneath, I want to to stay skinny. I know I can get a 235/85/16 (32"), but can'seem to find a 33" skinny tyre. The objective is to keep it as high as possible and not drag the spare / sidewalls. NO I don't want to put a rear wheel carrier on, under there is the best place for weight and convenience. The rear carrier will come when I fab a rear bar (one day).

Does anyone know of a 33" skinny in any pattern / brand?

Thanx
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Post by Andrew_C »

I know Kelly do a 33x9.5 15. - could do the trick - I think BFG do the same in muds.
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Post by Emo »

I think Maxxis do a 255/85/16 which is almost identical in size to a 285/75/16. I know that some people with 80 series Landcruisers run 16x6 split rims as spares.
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Post by shorty_f0rty »

Andrew_C wrote:I think BFG do the same in muds.
I've heard from several people that they dont make these any more OR are extremely hard to find.

what about a 33x9.5r15 Bogger?

or the 34x9.5r15 LTB Swamper?
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Post by bushy555 »

How about good old 7.50/R16 split rims?
(in an 85 series sidewall tyre)

They measure 32.5" sitting on the vehicle.
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Post by me3@neuralfibre.com »

bushy555 wrote:How about good old 7.50/R16 split rims?
(in an 85 series sidewall tyre)

They measure 32.5" sitting on the vehicle.
Could you drop a 7.5 R 16 onto a 16" tubeless 6" cheap sunraysia rim?
I hate split rims

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Post by nastytroll »

8.25 truck tyre, bout 210mm wide n 33.4" tall from memory
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Post by Sixty's Guy »

BFG make 33x10.5x15 in both AT and MT. They did make the AT in a 33x9.5x15, but I think it's NLA - you might want to check this though.

Kelly Tires list a Safari AWR and the MSR in a 33x9.50x15, but you might want to check this too as they are listed on their US site.

The other option is 255/85/16 which will be a true 33" tyres, unlike the imperial 33" tyres which seem to be more like 32.5". See if you can get the 255 on a 6" wheel, will help with width.

I have 33x10.5x15 BFG MT's and have researched this a bit.
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Post by DaveS3 »

255/85/16 as said.
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Post by Gwagensteve »

As said, 8.25 16 truck tyre.

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Post by Eddy »

Gwagensteve wrote:As said, 8.25 16 truck tyre.
.
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Post by BillJan »

I have qty 3 BFG Muddies 33x9.50x15 on white sunnies with 65% tread.
And I dont mind parting with them!
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Post by V8Patrol »

me3@neuralfibre.com wrote:
bushy555 wrote:How about good old 7.50/R16 split rims?
(in an 85 series sidewall tyre)

They measure 32.5" sitting on the vehicle.
Could you drop a 7.5 R 16 onto a 16" tubeless 6" cheap sunraysia rim?
I hate split rims

Paul
yep

And you could also run a tube aswell if you choose to.
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Post by Sixty's Guy »

I'm not 100% sure but I think the 8.25R16 is a 34" tyre?
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Post by Gwagensteve »

They're nominally a 34 but most will measure in the 33's. (They actually calculate at 33.3) 285/75/16's are over 33 anyway so it will be close enough IMHO.

We used one as a spare for 34" swampers for ages.


Paul, if you really want to keep the width down though, use a split rim unless you can find a 5.5" one piece rim. Adding rim width will eat into your clearance.

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Post by Sixty's Guy »

JUst out of interests sake, according to the local agent Kelly don't import the 33x9.50x15 into Australia.
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Post by me3@neuralfibre.com »

Gwagensteve wrote:They're nominally a 34 but most will measure in the 33's. (They actually calculate at 33.3) 285/75/16's are over 33 anyway so it will be close enough IMHO.

We used one as a spare for 34" swampers for ages.


Paul, if you really want to keep the width down though, use a split rim unless you can find a 5.5" one piece rim. Adding rim width will eat into your clearance.

Steve.
Is there such a thing as a 5.5" x 16" 5 stud toyota (100) sunraysia or similar?

Thanx
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Post by dieseldude »

me3@neuralfibre.com wrote:
Gwagensteve wrote:They're nominally a 34 but most will measure in the 33's. (They actually calculate at 33.3) 285/75/16's are over 33 anyway so it will be close enough IMHO.

We used one as a spare for 34" swampers for ages.


Paul, if you really want to keep the width down though, use a split rim unless you can find a 5.5" one piece rim. Adding rim width will eat into your clearance.

Steve.
Is there such a thing as a 5.5" x 16" 5 stud toyota (100) sunraysia or similar?

Thanx
Paul
Yeah mate! Apparently there is. I believe I run them on my cruiser.

Talk to Ryano at Fourby's. He sourced my split rims for the 100 series and I recall being told that mine are the wider ones off the 100 series as opposed to the narrower version from utes etc.

I could be wrong in this but from memory I think mine were 5.5"

I personally prefer split rims over sunraysias etc. Especially if you're doing outback touring. (I won't get into any argument about it here as everyone's opinion and needs are different).
I went out of my way to run splits on my last vehicle - 97 GQ Patrol and also now on my 105 series cruiser.

Image

Image

Image

Image

Image

As you can see. My sidewalls stand very straight which is good for stoney roads. My tyres are 12 ply bias so they suck in the sand and dig down a fair bit.

My ultimate tyre / rim combo would be something about the size of an 8.25r16 bias tyre fitted to a 7 or 8 inch split rim. I reckon it'd look awesome and be easy to replair flats.

7.5r16's are good. They just look like crap! :D
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Post by Gwagensteve »

Paul was asking about a 5.5" sunny as he already said he doesn't like splits.

Paul I think the 100 RV has 6" one piece rims. I don't think you can get sunnies under 6"

Might be wrong though.

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Post by me3@neuralfibre.com »

I use an R&R Beadbreaker. Slower, but nice n easy. Split rims are fine, it's the tubes I prefer not to have. Tubeless split rims are non existant as far as I know.

I'll visit Ryano when I get back, see what deals he can do.

Thanx for the info guys, looks like it's possible.

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Post by Gwagensteve »

for what it's worth, I'd use a split rim and deal with the tube. 8.25's will be nearly indestructible under a 4x4 - I don't think it will be an issue- you won't have it apart very often.

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Post by dieseldude »

Gwagensteve wrote:Paul was asking about a 5.5" sunny as he already said he doesn't like splits.

Paul I think the 100 RV has 6" one piece rims. I don't think you can get sunnies under 6"

Might be wrong though.

Steve.
Right you are. I must have skimmed over that and read it wrong.

Cheers.

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Post by JOHNZ »

RV105 come with 6x16 rims & you can use 255/85-16 tyres or 825/16 truck tyre
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Post by me3@neuralfibre.com »

bushy555 wrote:How about good old 7.50/R16 split rims?
(in an 85 series sidewall tyre)

They measure 32.5" sitting on the vehicle.
I think this is the best way to go. 7.5" = 185. Nice and skinny. I just have to try and find a suitable rim. 32.5 vs 33", is close enough on dirt not to matter.

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Post by Gwagensteve »

Not many 7.50's are 32.5 tall. Most are 31.75", and some are even under 31" Remember your 285's are over 33 tall, I think 33.3 is common. It;s won't be hard to have nearly 2" difference once on the road.

If you are happy to live with that, fine, but the 8.25 on a 6" RV rim would be a happier match and only a tiny bit wider.

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Post by me3@neuralfibre.com »

Gwagensteve wrote:Not many 7.50's are 32.5 tall. Most are 31.75", and some are even under 31" Remember your 285's are over 33 tall, I think 33.3 is common. It;s won't be hard to have nearly 2" difference once on the road.

If you are happy to live with that, fine, but the 8.25 on a 6" RV rim would be a happier match and only a tiny bit wider.

Steve.
I did some googling last night trying to get a better grasp on it. I take it 7.5 is not 7.5" wide? And the profile I would assume to be 85 probably isn't either.

A bit wider is fine, just trying to stick to the "skinny" profiles.

Can anyone explain or show me a site that does sze conversion equivalents for this measurement system? All the ones I found has nothing.

Thanx
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Post by Gwagensteve »

7.50 is the section width, not tread.

The aspect ratio of these tyres (where section isn't specified) is 105% but just like almost every other tyre, the actual height ends up a bit under the theoretical height,

So, 7.50 = 31.75
8.25= 33.3
9.00= 35 (although michelin 900's are 36" tall :roll:)

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Post by Scouse »

me3@neuralfibre.com wrote:Can anyone explain or show me a site that does sze conversion equivalents for this measurement system? All the ones I found has nothing.
This is quite useful:
http://www.1010tires.com/TireSizeCalculator.asp
It does both types of tyres.
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Post by ISUZUROVER »

why is there no delete option?
Last edited by ISUZUROVER on Thu Nov 01, 2007 3:34 pm, edited 1 time in total.
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Post by ISUZUROVER »

Gwagensteve wrote:7.50 is the section width, not tread.

The aspect ratio of these tyres (where section isn't specified) is 105% but just like almost every other tyre, the actual height ends up a bit under the theoretical height,

So, 7.50 = 31.75
8.25= 33.3
9.00= 35 (although michelin 900's are 36" tall :roll:)

Steve.
That is pretty right - only addition is that there are "road" and "offroad" standard specs, so "offroad" patterns tend to be about 0-.25-0.5" larger.

I have 255/85-16s (Maxxis Bighorns). They work very well offroad but I did manage to stake 1 (offroad) and put a big screw through a 2nd (on-road), in only the first 3 weeks. Fortunately they were both repairable.

I have 285/75-16s on the other landie, and they are as good or better. I have driven them at 8psi over the sharpest rocks imaginable and never had a problem.
Scouse wrote:
me3@neuralfibre.com wrote:Can anyone explain or show me a site that does sze conversion equivalents for this measurement system? All the ones I found has nothing.
This is quite useful:
http://www.1010tires.com/TireSizeCalculator.asp
It does both types of tyres.
Not bad - but what do you mean "both types" ? There are at least 4 sizing systems I know of for car tyres:
P metric = Section width in mm / sidewall as % - rim " (e.g. 255/85-16)
Metric - weird french idea with metric rim diameters - fitted to peugeot/renault then died out...
American = overall diameter " x section width " x rim " (e.g. 33x10.5x15)
And finally the english/truck sizing system. section width " x rim " (e.g. 7.50x16, 11R20, etc...)
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