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-   -   tubeless and tube pressure (https://www.horizonsunlimited.com/hubb/light-overland-vehicle-tech/tubeless-and-tube-pressure-55348)

lucky_hannes 5 Feb 2011 21:30

tubeless and tube pressure
 
I have to drive a Toyota Landcruiser Pic Up in Tansania. I don't know what made and Type of Tubes the car have. Anyhow the question is what pressure is used in tubeless and tube types?
Thanks all for your answers!

Peter Girling 6 Feb 2011 10:59

Tyre pressures
 
My 78 Series is on BFG A/T tubeless. I run 2.5 bar front and 3 bar rear.

Happy trails,

Jojo

tacr2man 7 Feb 2011 17:33

previous poster has given you a good starting point , but tyre pressure is dependent on weight for normal terrain conditions , (i.e. not sand ) Check your tyre pressure at start of day (before you have driven) then drive the vehicle after say 25miles (half hour) of driving check pressure You are aiming at a pressure rise of 4psi . If it has gone up more than that then your tyre pressure was too low at start If it has not gone up by 4psi then it was too hard at start . in both cases whentyre is cool again adjust pressure so that if it was too hard deflate by thye number of psi it had not gained below 4psi. If it was more than a 4psi rise then inflate tyre by the same number of psi above your original start point. HTSH

langebaan sunset 23 Jul 2011 10:21

Tyre pressures on 110 Defender
 
Hi folks

We just did 48,000km in Africa on one set of BF Goodrich ATs (tubeless) with fully loaded 300 tdi (total mass circa 3,100kg) Here is our take:

Tyre pressures (in the main) are a function of tyre make, vehicle weight, road conditions and temperature. Tyre condition and driving style are also factors you have to think about as "speed" and the wrong tyre pressures on the wrong type of road are not good bed fellows.

We ran our tyres on good tarmac at: 3.3bar rear and 2.3 bar front
On bad tarmac / gravel we took it down to: 2.8 bar rear and 1.8 bar front
On firm sand and areas where we could get stuck: 2.0 bar rear and 1.5 bar front. Lower pressures for rock crawling - especially in Namibian / Moroccon deserts.

We never had a puncture although we did get a cut in the sidewall in Namibia but it was not too serious. BFG ATs are good tyres!! The above is only a guide and you have to adjust to suite the factors mentioned above.

Managing tyre pressures also helps to make your suspension / drive shaft UJs last a lot longer!

BTW - a good compressor is also a must - deflating and reflating tyres in the desert heat is not fun - get a good one that will last. We also found the heat degrades the silicon air line over time - we swapped this for 5m of rubber fuel hose in Gabon after we opened the compressor bag only to find the air line in 200 small bits.....!!

HTH

Nick


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