Prado Grande Tyres

Submitted: Monday, Jul 09, 2007 at 20:07
ThreadID: 47561 Views:4672 Replies:6 FollowUps:13
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Finally back to my tire selection issue. Leaning towards putting cooper Sure Track LT245/70/R17 tyres on as replacements for the Grandtrek 265/65/R17. Only 5mm difference in rolling circumference so will not muck up trip computers etc etc if we resell. 8% difference in tread width isn't going to out-weigh benefit of LT construction (as far as I can see).

Just interested if anyone else is running this configuration and if there are any other comments?

Cheers
Gary
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Reply By: oldpop - Monday, Jul 09, 2007 at 20:35

Monday, Jul 09, 2007 at 20:35
cooper tyres are only goood for stopp[ing the rims from hitting the road

use BFG A/T
regards
Oldpop
AnswerID: 251580

Follow Up By: Member - Oldplodder (QLD) - Tuesday, Jul 10, 2007 at 08:36

Tuesday, Jul 10, 2007 at 08:36
Here goes the Nissan/Toyota, Engel/Waeco type debate again.
Think I might do something different with tyres. :o)
So.
BFG AT are rubbish, so are Coopers, only use other makes such as Goodyear, Kumho, Simex, Toyo, Dunlop, Bridgestone, Yokohama etc, anything else but BFG and Coopers will work fine.

Oh, by the way, I might be a bit biased in my view because of previous experiences with different makes of tyres. :o).

So, oldpop, please explain your experience with Coopers and BFG AT.
(Seriously trying NOT to have a dig at you, but it's hard typing with one arm behind my back.)

regards in a heart felt way,

John C - aka oldplodder.
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Follow Up By: Anthony - Tuesday, Jul 10, 2007 at 09:06

Tuesday, Jul 10, 2007 at 09:06
Hi oldpop

The only problem with BFG's is they don't provide a 245/70-17 in Aust. Nor does any other AT or mud name brand tyre.

I used BFG AT's on the previous 4wd for 13 years and was happy with them. I would consider using them again if they made available a 245/70-17 but if you believe what you read, then the BFG AT's are not as got as they were 10 years ago.

I don't mind giving the Coopers a go - cheers Anthony
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Follow Up By: Shaker - Tuesday, Jul 10, 2007 at 11:17

Tuesday, Jul 10, 2007 at 11:17
If you choose Coopers, stay on the bitumen!
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Reply By: Anthony - Tuesday, Jul 10, 2007 at 08:55

Tuesday, Jul 10, 2007 at 08:55
I will be fitting the same tyre and size on a Prado GX next weekend for the same reason to keep the speedo reading the correct speed (don't have the trip computer). Fyi, Cooper has a LT 10 ply and a lighter construction version tyre in the ST 245/70-17.

I am waiting on the shop getting some 17by7 steel rims as the GX come with only a 6inch rim.

AFAIK, no other tyre brand appears to make (or import) the 245/70-17 into Aust, so there is little choice of brands (or argument) if this is the size tyre needed.

I will let you know how they go once fitted - cheers Anthony
AnswerID: 251654

Follow Up By: gazand CJ - Tuesday, Jul 10, 2007 at 15:26

Tuesday, Jul 10, 2007 at 15:26
Please do.
Thanks
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Follow Up By: George_M - Tuesday, Jul 10, 2007 at 19:23

Tuesday, Jul 10, 2007 at 19:23
Hi Anthony

I also would be interested in how you go with these tyres.

George
Come any closer and I'll rip your throat out!

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Follow Up By: Anthony - Wednesday, Jul 11, 2007 at 12:09

Wednesday, Jul 11, 2007 at 12:09
Gazand & George

The tyre shop has said they need 3 weeks to order in the 17by8inch steel rims to fit the 245/70-17's. So I wont know how they go until about the end of july.

Regarding the various Cooper commets, it is interesting that some people really don't like the Cooper tyre. I would be interested to know if they had formed their opinion based on using Coopers themselves or from talking with other people ?

I'm heading off to Oodnadata, around Alice and then the Plenty Hwy talking 2 months. I guess I will have a better idea on how Cooper ST's perform for me, for how I drive. - cheers Anthony

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Reply By: deserter - Tuesday, Jul 10, 2007 at 15:06

Tuesday, Jul 10, 2007 at 15:06
Do BFG make a 265/65/R17 ??? Just wondering why its so important to go to 245. Would it make that much difference in the long term ?

BTW - I am in the same boat at the moment in deciding what to fit on the Prado for a Cape trip.
AnswerID: 251706

Follow Up By: gazand CJ - Tuesday, Jul 10, 2007 at 15:31

Tuesday, Jul 10, 2007 at 15:31
deserter,

I was eager to get a LT tyre for the extra strenght and there aren't any in the 265/65/R17 format. The 245/70/R17 is almost identical in terms of it roll diameter and the Cooper and Pirelli ATR Scorpion are the only tyres I could find find that were LT.

BFG don't make a 265/65/R17. You would need to put on 265/70/R17. Heaps of people do, but I just felt it was better to avoid putting a larger tyre on when there was an alternative.

Cheers
Gary
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Reply By: deserter - Tuesday, Jul 10, 2007 at 15:52

Tuesday, Jul 10, 2007 at 15:52
Ta for that. Did you see the Pirelli top scored in one of the magazines A/T tyre test ?? I am seriously considering them at the moment. But now you have made me think about an LT tyre. What sort of sidewall ply strength do they have ?
AnswerID: 251714

Follow Up By: Member - Oldplodder (QLD) - Tuesday, Jul 10, 2007 at 16:12

Tuesday, Jul 10, 2007 at 16:12
LT and 10 ply - really they are only 10 ply in name only.
If you look at the side wall, they are only 2 ply.

But it comes from the old days of having 10, 12 , 16 ply construction for truck tyres in the conventional ply design. This ply rating was a load rating based upon the number of plies.
So in a radial LT construction, '10 ply' really indicates a heavier load rating (generally 112 to 116, and possibly up to 120), still only has 2 plies, but may have slighter thicker rubber in the walls and maybe slightly heaver plies to get the load rating.
Whereas 6 ply radial tyres might have a load rating of 90 to 100.
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Follow Up By: Shaker - Tuesday, Jul 10, 2007 at 16:27

Tuesday, Jul 10, 2007 at 16:27
..... What sort of sidewall ply strength do they have ?

Very average, it appears that the Coopers suffer more failures than most other brands, my own experience included. As someone said earlier in this post, they are good for keeping the rims of the ground!
After removing the surviving tyres from the vehicle & fitting them to the camper trailer, they failed on the next Outback trip.
Oh, and the warranty ..... ha ha ha ha ha!
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Follow Up By: deserter - Tuesday, Jul 10, 2007 at 17:11

Tuesday, Jul 10, 2007 at 17:11
Yep - I gotta admit. I have been very surprised at the number of A/T brand tyres that are only rated 2 ply sidewall.
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Follow Up By: Member - Phil G (SA) - Tuesday, Jul 10, 2007 at 20:24

Tuesday, Jul 10, 2007 at 20:24
Deserter,
Every tyre on the market only has 2 or 3 plies in the sidewall - thats the way they are made. No such thing as a 10ply tyre - they are a 10ply "rating".
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Reply By: Member - Owen M (NSW) - Tuesday, Jul 10, 2007 at 17:39

Tuesday, Jul 10, 2007 at 17:39
I have had Cooper Discover A/T on my Prado (265/65/17) and have found them great. Done 65000kms so far (approx. 40000 on dirt) and about to hed off again with tread left for a while yet. Each to their own I reckon - if you find a brand you like stick to it.
AnswerID: 251731

Reply By: Froilan - Tuesday, Jul 10, 2007 at 22:10

Tuesday, Jul 10, 2007 at 22:10
i fitted cooper atr lt265/70r17 on my prado 120, and after 10000k, it still looks new. i got it fitted jsut before doing a trip to fraser island in easter 2007, and have done a few trips in wollemi and yengo national parks as well. works very well in sand, mountain tracks, mud, dirt. not as aggressive as the ST but I do a fiar bit of bitumen as well so atr is my compromise. had to install a "black box" to correct the speedo and the truck is now ok. i heard the stories about coopers chipping badly, but so far, i am a happy camper.
AnswerID: 251800

Follow Up By: Member - Brenton H (SA) - Wednesday, Jul 11, 2007 at 14:49

Wednesday, Jul 11, 2007 at 14:49
Hi Froilan. Was thinking about the 265/70/R17 for my prado. What's the low down on the "black box" and where did you get it.
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Follow Up By: Froilan - Wednesday, Jul 11, 2007 at 15:24

Wednesday, Jul 11, 2007 at 15:24
hi brenton, i got it from a company in sydney called automotive instruments. looking at your member name, it looks like you are SA based. i am sydney based. there must be a similar mob in SA. i asked the local toyota dealer and they recommended the company.

the larger tyre means the speedo shows a lower speed than what it actually is. don't know how the box works but it must adjust the speedo on the fly.

the box works well and is hidden under the dashboard. can't even tell it is there. i got speedo tested by other means and it seems accurate.
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