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Tire question

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15 replies to this topic

#1
Lauroness

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10 PLY or 8 PLY

#2
AlysonH

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Wow I haven't seen toilet paper sold that thick. Where are you shopping??

Just kidding . I think the majority of off road tires are 10 - 14 ply rating. Thanks to my coach Brenton and the tire class we had a couple weeks back.

#3
Lauroness

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Ok I figured. I have 10ply on the discovery but want to get tires for the Range Rover but they only have 8 PLY in stock and have to wait 2 weeks before I can order 10 PLY

#4
GraemeWare

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Wow I haven't seen toilet paper sold that thick. Where are you shopping??

Just kidding . I think the majority of off road tires are 10 - 14 ply rating. Thanks to my coach Brenton and the tire class we had a couple weeks back.

 

Alyson,

 

Fire your coach ....

 

Ply ratings are historical (they don't really have those number of actual plies).  6 ply is a load range C, 8 ply a load range D, 10 ply a load range E.  12 or 14 ply would be for trucks!

 

The real answer is, "What vehicle and what are you using it for?  Plus, what load is in the vehicle?

 

Most true off-road (crawlers, etc.) tires are load range C.  In fact, it is hard to get an LT flotation tire in anything above C rating.  Many people use a P-metric (or Euro-metric) tire that equates to the same size to gain an E rating tire (for heavier LR vehicles, or heavily laden LR vehicles).

 

Regards,

 

Graeme


Graeme Ware -- San Carlos, CA

1990 Range Rover Classic - LT230 Transfer box, Warn winch, 2" lift, 235/85-16 Dunlop MUD Rovers, "Blue Submarine"
1996 Discovery 1 (R380 Manual Transmission, Ashcroft under-drive, RoverWare rear bumper, 33x12.5-15 BFG ATs) -- we call her "Katrina" -- Fordyce 7.5 mile survivor
1999 Discovery 2 (D1 CDL Linkage, 265/75-16 BFG A/T KO, RoverWare front and rear bumper)
1993 Jaguar XJS convertible; 1971 Triumph GT6; 1959 Morris Minor convertible
other assorted British pot metal ...


#5
AlysonH

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I know they aren't actual plys and that it has more to do with load rating. A 10 ply rated tire has only 3 plys

#6
Lauroness

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Alyson,

Fire your coach ....

Ply ratings are historical (they don't really have those number of actual plies). 6 ply is a load range C, 8 ply a load range D, 10 ply a load range E. 12 or 14 ply would be for trucks!

The real answer is, "What vehicle and what are you using it for? Plus, what load is in the vehicle?

Most true off-road (crawlers, etc.) tires are load range C. In fact, it is hard to get an LT flotation tire in anything above C rating. Many people use a P-metric (or Euro-metric) tire that equates to the same size to gain an E rating tire (for heavier LR vehicles, or heavily laden LR vehicles).

Regards,

Graeme


So we're talking about a 88 ranger rover. Looking at just minor build. 2" lift, HD bumper, winch, maybe a rack. Just a trail rig to beat up. You could vouch that load range D would be sufficient?

#7
DHappel

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Graeme beat me to it - as soon as I say the old 'ply' designation I was working up a lecture in my head...

 

As to the RR, I would agree a D would be fine for that application.  It would vary somewhat based on the specific tire but there should be no need for the extra capacity of an E.  In theory an E might be a bit tougher than a D or C, but again you need to largely consider the weight of the vehicle.  An E would be heavier and stiffer which would impact mileage and wear on suspension/steering components as well as possibly limiting sidewall flex on the trail and causing a harsher ride on the road.


Don
'07 LR3 HSE/HD - slightly non-stock

'96 D1 - even more non-stock


#8
Lauroness

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My biggest fear is one day saying "jeeze I should have gotten E instead". How does that factor go into play regarding punchers. Last OctR fest we exp two Lr3 getting sidewall punchers. Think Graeme was one of them? If I can get a solid answer I may just purchase the D as I am tooooooooooo anxious to wait...

What does everyone else run?

Just comment with the letter. I'm curious on what everyone else runs. No need to explain why.

#9
NThyrring

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My biggest fear is one day saying "jeeze I should have gotten E instead". Last OctR fest we exp two Lr3 getting sidewall punchers.

I was one.

I have punctured three side walls on my present tires.

Attached Files


Thank you,

Nils

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#10
DHappel

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Tire brand/model, pressure, terrain, and driving style have at least as much if not more (much more) to do with sidewall failures than just load rating.   Load rating is not a direct indicator of sidewall durability, it's literally based on the tire's ability to carry a given weight at a certain pressure.  

 

I run E rated tires on my LR3 because she's heavy.  REALLY heavy.  Like 7500 lbs when loaded.  If I were to run that same tire on a 4500 lb rig it would be a poor fit since the tire wouldn't flex much.  Additionally comparing an LR3 (or other late-model Rover) to an RRC or Disco is apples to oranges as you typically see low profile tires on the late model stuff due to running larger wheels (18"+) to clear the brakes and the limited wheel well clearance.  

 

In short, I wouldn't suggest an E rated tire for an RRC.  D should be more than adequate for the weight of the vehicle.

 

As for sidewall durability, some tires are stronger than others.  That's a whole different thread!  Do you have a specific tire in mind?


Edited by DHappel, 03 March 2017 - 12:53 AM.

Don
'07 LR3 HSE/HD - slightly non-stock

'96 D1 - even more non-stock


#11
Lauroness

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Don, thanks for the info. It's making more sense now. I read a good write up on 4wheels websites. You sum it up very well tho. I'm well I'm looking at a couple different sets, but I think I may go treadwright again.

#12
AdvRovr

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It's worth mentioning, E Range tires are designated for 3750# each. Unless you're loading the RRC with lead bars, you're not getting anywhere close to that.

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#13
GraemeWare

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It's worth mentioning, E Range tires are designated for 3750# each. Unless you're loading the RRC with lead bars, you're not getting anywhere close to that.

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Chad,

 

Ahhhh, about that ....

 

I heard a RRC was used as the getaway vehicle ....

 

http://www.bbc.com/n...entral-38676519

 

 

Regards,

 

Graeme


  • AdvRovr likes this

Graeme Ware -- San Carlos, CA

1990 Range Rover Classic - LT230 Transfer box, Warn winch, 2" lift, 235/85-16 Dunlop MUD Rovers, "Blue Submarine"
1996 Discovery 1 (R380 Manual Transmission, Ashcroft under-drive, RoverWare rear bumper, 33x12.5-15 BFG ATs) -- we call her "Katrina" -- Fordyce 7.5 mile survivor
1999 Discovery 2 (D1 CDL Linkage, 265/75-16 BFG A/T KO, RoverWare front and rear bumper)
1993 Jaguar XJS convertible; 1971 Triumph GT6; 1959 Morris Minor convertible
other assorted British pot metal ...


#14
SLOHybrid

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Speaking of I will have a set of 265/75/16 Good year Duratracs for sale  ... bought last year before the Annual and probably have 1000 miles on them.  $650 obo.


Edited by SLOHybrid, 03 March 2017 - 11:17 AM.

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#15
DHappel

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The Treadwrights are interesting as you can specify the tire carcass you want them built on.  You might request tread pattern 'X' on a BFG KO for example.  At least I think they still do that.

 

What size are you looking at, and what pattern?


Edited by DHappel, 03 March 2017 - 08:27 PM.

Don
'07 LR3 HSE/HD - slightly non-stock

'96 D1 - even more non-stock


#16
Lauroness

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Guard Dog MT. I'm not sure they do that anymore. They are having trouble keeping tires on stock. Maybe just slow production. But then I've never asked. So far the tires on the discovery are in great shape. Had them almost a year now and I'm quite satisfied




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