bf goodrich all terain tyres road pressure

goldenyears · Senior Member

bf goodrich all terain tyres road pressure

Peter_n_Margaret · Guru

The 80psi on the tyre is directly related to the maximum load the tyre is rated to carry. What is that?
The appropriate pressure is related to the actual load carried. What is that?
More information required.

Cheers,
Peter

goldenyears · Senior Member

Thanks peter .. well gvm 3500 ,, not sure if that helps ? Been to a lot of forums that state no lower than 36 0n bitumen but prefer the advice I get on this site ... what you think peter ?

EJP · Senior Member

Goldenyears, Are these tyres fitted to your vehicle or van? when you say a set, is it 2 or 4 tyres? A van of that gvm would have dual axles. As Peter said the tyre pressures required would relate to the actual load carried, ie, type of vehicle and actual load carried in the vehicle or the actual weight of the van being towed. If you are refering to the vehicle then the tyre pressures may differ front to rear depending on your setup. If you are refering to the van, dual axle, and were close to your gvm then you would, in my opinion, need to have approximately 50 psi in each tyre.
EJP

goldenyears · Senior Member

yes this vehicle is a motorhome ............ small compact has everything that any caravan has without the hassle of towing and 4wd ability.. fully loaded gvm 3500 ..

thanks for replying

-- Edited by goldenyears on Tuesday 30th of October 2018 07:26:12 PM

-- Edited by goldenyears on Tuesday 30th of October 2018 07:28:40 PM

-- Edited by goldenyears on Tuesday 30th of October 2018 07:32:05 PM

Aus-Kiwi · Guru

Strange as it may seem ? If not sure . I have pumped my duel rear tyres till the bow or flat area is what looks right . Ill get persicuted for this . But I found ride very hard . Then I dropped pressure . Up North WA the air only went to 60lb . Believe it . It rode way better with 60 lb and suggested 90 lb . Mind you as said its way below its max weight . Not the same tyres tho .

goldenyears · Senior Member

have a feeling that 36 .. 40 cold pressure might be ok.. new tyres so don't know how they will wear on bitumen ..

thanks kiwi

Mamil · Senior Member

Hi Goldenyears, I have a set of BFG KO2s for my car, a LandRover Discovery Sport. On the bitumen I put them to exactly the same pressure the car manufacturer recommends for normal 'road tyres' of that size. Is there a plate on your camper giving this information - I thought all vehicles had it? By the way, I find the BFGs to be excellent off-road tyres, but a bit 'stiff' and noisy on the bitumen. They also decrease my fuel efficiency by a couple of litres per 100km, compared to the road tyres.

-- Edited by Mamil on Tuesday 30th of October 2018 09:59:55 PM

-- Edited by Mamil on Tuesday 30th of October 2018 10:06:54 PM

rockylizard · Guru

Peter_n_Margaret wrote:
The 80psi on the tyre is directly related to the maximum load the tyre is rated to carry. What is that?
The appropriate pressure is related to the actual load carried. What is that?
More information required.

Cheers,
Peter

Gday...

Peter is quite right in his question/s.

Also are these tyres LT?

Given the photos you have provided, I would suggest the rear tyres will require considerably more pressure than the front due to the weight it appears to be carrying.

Having said that, as Peter says, "The appropriate pressure is related to the actual load carried. What is that?"

Do you know the weight/s on the axles? If not, perhaps time to visit a weigh station.

cheers - John

EJP · Senior Member

Goldenyears, l am not overly familiar with motorhomes but looking at your photos you are heavier at the rear, which would require higher pressures in the rear tyres than in the front. Maybe try 45-50 psi in the rear and 35-40 psi in the front and see how it goes and adjust from there, taking the ride, steering and wear into account. This is for sealed roads, offroad the pressures would have to be reduced in accordance with the conditions.
EJP

Peter_n_Margaret · Guru

goldenyears wrote:
yes this vehicle is a motorhome ...... fully loaded gvm 3500 ..

More information please :)

We need to know the ACTUAL load on the front axle and the ACTUAL load on the rear axle and whether the rear axle is single wheels or dual wheels.

These need to be real, not guesses, not theoretical.

Cheers,

Peter

yobarr · Guru

Peter_n_Margaret wrote:
The 80psi on the tyre is directly related to the maximum load the tyre is rated to carry. What is that?
The appropriate pressure is related to the actual load carried. What is that?
More information required.

Cheers,
Peter

Assuming tyres are 17 inch singles,they are rated at 1450kg max at 80 psi.And 170km/hr if youre in a hurry!

-- Edited by yobarr on Tuesday 30th of October 2018 10:23:44 PM

goldenyears · Senior Member

oops !!!!

PeterD · Guru

goldenyears wrote:
Hi all need advice have a set of bf Goodrich ko2 allterain tyres ..

There is nothing special about those tyres. All tyres of the same size and loading require the same amount of air and thus the same pressure in them. What does the tyre plate in the vehicle or the driver's handbook recommend? Just use that recommendation.

yobarr · Guru

PeterD wrote:
goldenyears wrote:
Hi all need advice have a set of bf Goodrich ko2 allterain tyres ..
There is nothing special about those tyres. All tyres of the same size and loading require the same amount of air and thus the same pressure in them. What does the tyre plate in the vehicle or the driver's handbook recommend? Just use that recommendation.

Might I suggest that,in this case,the handbook would be of almost no use?Just take a look at the vehicle.To achieve a GVM of 3500kg,it would have to have been upgraded from factory ratings.If it is loaded to its GVM of 3500kg,there would be well over 2000kg on the rear axle.I suspect that that would not be possible in normal circumstances,and that the handbooks figures would be of little use.Cheers