Tuesday, May 20, 2003 at 18:09
Dave,
Back to the original question of Grandtreks. I ran a set of the standard Grandtreks on my Prado for 67,000 km. (4 wheel rotation) They probably still had another 5-8,000 km on them when I changed them out.
In that time, I did a moderate amount of 4wd'ing. They survived
Flinders Ranges at 55,000 km including many rocky and shaley tracks around Arkaarola.
I put the fact that they survived down, to the following factors,
a) Appropriate pressures for the terrain and load I was carrying,
b) Not going too fast for the conditions,
c) Watching carefully all the time where I was placing the wheels, so I did not drive over sharp points of rocks and sticks..
Now I don't know about the
Gibb River Road, and how it would compare, with the tracks that we covered.
Having said that, the original Grandtreks in the Damp or Wet Clay surfaces where absolutely slippery and had me terrified (as we slid totally out of control) a couple of times on relatively easy 4wd tracks.
When I came to replace my tyres, I wanted an AT tyre, that had a good reputation and in the size and load rating that keeps my vehicle legal in the state I live.
I could not get Coopers as they did not make a 265/70/R16, plus I had heard that a few people had problems with the sidewalls delaminating. At the same time, it was suggested that the BFG had a similar problem of delaminating and as they came out of Japan, where not as good as the USA ones.
I asked the opinions of tyres on several forums, and found the answers depended on which
forum you ask the question.
On Exploreoz most will say Coopers are Good,
On Overlander most say BFG's are Good provided they are USA ones,
On Prado (series 90) site, most say BFG are good irrespective of source, but some say tyres like Pirelli Scorpians, Goodyear etc are also good, depending on the sort of driving you are going to do.
In the end I bought a set of BFG's, and I could only get the ones made in Japan. They have had an easy life so far, and so far so good.
However, I drove at Christmas Time to
Sydney along the Hume Highway, on the days that where 42 - 43 degrees. I figured if they were going to delaminate, they might of at those tempertures when travelling 100km/hr on the hot bitumen. No signs of problems.
AARHH tyres, the perennial problem
Rgds,
Mal58
AnswerID:
20586
Follow Up By: Dean - Wednesday, Jun 04, 2003 at 13:34
Wednesday, Jun 04, 2003 at 13:34
Mal58,
How did you find the noise levels and ride harshness of the BFG'S compared to the Grandtreks, also are they the new ones with the S speed rating,
Regards
Dean
FollowupID:
14247
Follow Up By: Mal58 - Wednesday, Jun 04, 2003 at 13:57
Wednesday, Jun 04, 2003 at 13:57
Dean,
The noise levels with the BFG's are certainly higher than the Grandtreks. Around town I notice them a little bit, and on the highway they make quite a whir, but I mainly notice their noise when turning at low speed. You do get used to it though.
As far as harshness, it's hard to tell as I still have the original Prado
suspension, (it is quite soft) and I suspect that it tends to hide the differences between tyre types.
The BFG's I purchased were Q speed rating as there was no S rating at the time.
I checked (prior to purchase) and it is OK in Victoria (where I live) to fit tyres with a lower speed rating to a 4X4 provided the speed rating is greater than 140 kph.
Hope this helps.
Rgds,
Mal58
FollowupID:
14248