9" Tread - Land Rovers Only

01001010 · 11-01-2006, 10:03 AM

I'm looking for an MT with a 9" tread. There are a parks down here that require this in order to get their permits.

Do any of these have a 9" tread...

267/75/16
255/85/16
285/75/16

???

01001010 · 11-01-2006, 10:29 AM

Ok scratch the 285...just found out it has 9.5"

rbutler · 11-01-2006, 12:37 PM

I think it will depend on the tire manufacturer. Of 4 that I checked, only Sumitomo lists tread width in their specs (BFG, GY and Toyo do not).

Sumitomo lists the 285/75/16 Durango M/T as 8.9 in. tread width - less than the 9.5 for the tire you checked. Your other two sizes are 7.4 (255/85) and 7.6 in. width.

In your case I think it will depend on who is measuring the tire (since someone at the park will likely be checking). Sumitomos seem to have a wide shoulder that they are not including in the tread width measurement. The section width of the 285/75 is 11.3. I could see someone including the shoulders and disqualifying this tire (the 255/85 might be safer).

http://www.sumitomotire.com/catalogs/
passenger & light truck catalog

01001010 · 11-01-2006, 02:59 PM

Butler, you're right...the tire I measured in 285 was a BFG MT. Very square tread.

I would be looking for a BFG MT. I was making a few phone calls too and I was told that it would also deopend on the widt of the wheel it goes on. In this case, I plan to put them on NATO wheels.

300bhp/ton · 11-03-2006, 08:05 AM

9" tread? Do you mean the tyre width?

Seems like an odd requirement. Anyhow if you do then there are 25.4mm to the inch.

So a 285/75 tyre has a 285mm width or (285 / 25.4) 11.22"

A 9" wide tyre would be 228.6mm, so only 225's and smaller will be acceptable.

01001010 · 11-03-2006, 08:09 AM

Yep..I do mean tire width. I have 245/75/16 but they are 8.5" wide, and the park rangers dont let anything slide.

300bhp/ton · 11-03-2006, 09:17 AM

Quote:

Originally Posted by 01001010

Yep..I do mean tire width. I have 245/75/16 but they are 8.5" wide, and the park rangers dont let anything slide.

umm I wonder where the measurement is being taken from?

I mean a 245/75/16 has a 245mm width or 9.65".

Same as a tyre like a 31.10.50R15 has a 10.5" width which would be equal to a 265/xxR15 in metric width (is actually 266.7mm).

The 8.5" you have isn't the rim width requirement is it? Such as a 8.5j rim (16x8.5).

01001010 · 11-03-2006, 09:50 AM

Hmmm...i guess I should call them up and see from where to where it is that they are measuring. If anything I'll show up air down and have them measure the contact patch..lol

Capt. Ron · 11-03-2006, 10:11 AM

Yup, 225 will put you there, (8-55/64") No wider.
Acutally a 230 is much closer (9-1/16")

If you wanna show 'em that.

01001010 · 11-03-2006, 11:10 AM

aha...got the exact thing i needed....Tread Face width...my tire is 9.6 wide over all...but my tread is like 8.5

So then a 265 should be more than a enough, correct?

Capt. Ron · 11-06-2006, 08:38 AM

If they require AT LEAST a 9" tread then yes, you'll be fine with that. Anything over 230 will be within the regs.

11-01-2006, 10:03 AM	#1 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	9" Tread I'm looking for an MT with a 9" tread. There are a parks down here that require this in order to get their permits. Do any of these have a 9" tread... 267/75/16 255/85/16 285/75/16 ??? __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-01-2006, 10:29 AM	#2 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	Ok scratch the 285...just found out it has 9.5" __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-01-2006, 12:37 PM	#3 (permalink)
rbutler Member Join Date: Nov 2005 Location: Sparta, NJ Posts: 39 Gallery: 0	I think it will depend on the tire manufacturer. Of 4 that I checked, only Sumitomo lists tread width in their specs (BFG, GY and Toyo do not). Sumitomo lists the 285/75/16 Durango M/T as 8.9 in. tread width - less than the 9.5 for the tire you checked. Your other two sizes are 7.4 (255/85) and 7.6 in. width. In your case I think it will depend on who is measuring the tire (since someone at the park will likely be checking). Sumitomos seem to have a wide shoulder that they are not including in the tread width measurement. The section width of the 285/75 is 11.3. I could see someone including the shoulders and disqualifying this tire (the 255/85 might be safer). http://www.sumitomotire.com/catalogs/ passenger & light truck catalog __________________ '04 Freelander HSE Alveston Red '05 LR3 SE Tonga Green

11-01-2006, 02:59 PM	#4 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	Butler, you're right...the tire I measured in 285 was a BFG MT. Very square tread. I would be looking for a BFG MT. I was making a few phone calls too and I was told that it would also deopend on the widt of the wheel it goes on. In this case, I plan to put them on NATO wheels. __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-03-2006, 08:05 AM	#5 (permalink)
300bhp/ton The Best 4X4XFar Join Date: Mar 2005 Location: England, home of the Land Rover Posts: 601 Gallery: 0	9" tread? Do you mean the tyre width? Seems like an odd requirement. Anyhow if you do then there are 25.4mm to the inch. So a 285/75 tyre has a 285mm width or (285 / 25.4) 11.22" A 9" wide tyre would be 228.6mm, so only 225's and smaller will be acceptable. __________________ Land Rover Discovery (3 Door) 200Tdi 5-speed Mods:Allisport LARGE FMIC \| Allisport Tuned \| Simex Jungle Trekker II 33.11.50R15 Tyres \| 15x8 8 Spokes \| Heavy Duty Uprated Suspension (shocks & springs) \| Wheel arch Flares \| 1" Wheel Spacers \| Custom Straight Thru Exhaust \| Custom Trimmed Front bumper with twin NATO Hooks \| Custom Rear Bumper with single Large NATO Hook 360˚ Swival \| Front Light Guards \| Custom Aluminium Rear Floor \| Bonnet Straps \| 100w Spot Lights \| Upgraded Headlights The Best 4X4XFar

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11-03-2006, 08:09 AM	#6 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	Yep..I do mean tire width. I have 245/75/16 but they are 8.5" wide, and the park rangers dont let anything slide. __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-03-2006, 09:50 AM	#8 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	Hmmm...i guess I should call them up and see from where to where it is that they are measuring. If anything I'll show up air down and have them measure the contact patch..lol __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-03-2006, 10:11 AM	#9 (permalink)
Capt. Ron on, off, on, off, on... Join Date: Oct 2005 Location: In front of the blue lights! Posts: 748 Gallery: 0	Yup, 225 will put you there, (8-55/64") No wider. Acutally a 230 is much closer (9-1/16") If you wanna show 'em that. __________________ 03 Disco w/CDL 95 Disco 98 Disco: my first (gone)

11-03-2006, 11:10 AM	#10 (permalink)
01001010 Moderator Join Date: Jan 2005 Location: Lawrenceville, GA Posts: 4,544 Gallery: 15	aha...got the exact thing i needed....Tread Face width...my tire is 9.6 wide over all...but my tread is like 8.5 So then a 265 should be more than a enough, correct? __________________ JC... 1996 Discovery SE - The Blue Marlin - gone =( 1965 Series IIa 109 RHD 2.25L Dsl - Wilks 1965 Series IIa 88' LHD 2.25L Petrol - Fionna

11-06-2006, 08:38 AM	#11 (permalink)
Capt. Ron on, off, on, off, on... Join Date: Oct 2005 Location: In front of the blue lights! Posts: 748 Gallery: 0	If they require AT LEAST a 9" tread then yes, you'll be fine with that. Anything over 230 will be within the regs. __________________ 03 Disco w/CDL 95 Disco 98 Disco: my first (gone)

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