Tyre pressures?

[HJ60]

Hi, I'm new to this and I have been advised to run my BFG 32x11.5x15 AT tyres offroad at down to twenty PSI (tubeless).

Onroad Tonys tyres have recommended 30 PSI front and 36 rear on my HJ60 cruiser and half that for offroad.

Some of the locals have suggested 18 psi onroad and 8 - 10 offroad with tubes works well.


Lots of options here

Should it be different pressures for mud & sand?

Thanks, Rick.

[albundy]

I keep all my tyres at the same pressure, never different from front to rear. When out bush I go down to 20-25 PSI that way I don't need to air up straight away when back on tarseal. When around town I run 35 PSI and when loaded on the highway I run 40psi. I currently use 31x10.5x15 Scorpion Pirelli MT's. Hope this helps. What I found is that I needed to play with things to find what was right for my truck and driving style.
Albundy

[wopass]

for the cruiser mate, big heavy wagon like mine,, 40psi all round on road,, and off roaddepends on how full on your getting, 20psi is safe but 15psi will give you more footprint=more traction. i run10-15 with tubes off road and never had a problem.....yet. sand well 15-20 would be the go,, just remember you have to pump the tyre back up again before you hit the seal or youll fook the rubber, if you only go down to 20psi, you can do a nice slow drive to your nearest station for the air or carry a pump,, i recomend carrying the pump and go for the 15psi with tubes.

thats my opinion anyway. but again depends on your driving style and how serious your getting... GET SERIOUS
more fun that way,, and your mate gets to have a laugh when he has to pull you out

[lilpigzuk]

If you can, run tubes. Quite often I see on club runs where tubeless people let there tyres right down then hit a rut pushing dirt and crap between the tyre and rim. Usually enough to give them a slow leak. Worst case scenario it can break the bead, expelling the air pretty damn fast.....

cheers
Rex

[wopass]

egzakly... /agree

nothing worse than trying to get a tyre back on the bead when its covered in mud yummy

[DJ]

hi
Ill add my two cents worth (as there is nothing on TV ) when letting down tires it may be a good idea to take into consideration the weight of the vehical and the type of tire. Example, two of us run the same model surfs, with all the junk on board mine is slightly heavier, he runs SAT tires
I run Mongrels. He runs 3 lbs pressure no problems I will run down to 8lbs both have tubes. His tires dont even look flat at 3lbs this is due to sidewall ply rating. The point being that its a matter of trail and error, start off with a high pressure( for off road ) and lower them down from that starting point.But always remain within manufacturers specs for on road conditions.
different tires behave in different conditions.
opps gotta go Sports Illistrated Swim suit calander girls are on , Ill just check out their tires and pressures
cheers

[cruiser_beast]

Hey all,

after doing thompsons track(the easy side ) my tyres have been leaking around the bead, from mud and krap i guess getting into the bead. Im thinking about these tubes ya can put in, but i have heard that with a radial tyre you get a lot of trouble with pinching of the tube on the bead and you get a lot of punctures. is this true or am i dreaming.


Sam

[wopass]

if you run tubeless tyres off road your gonna get bead leaks, the only way to remedy this is to iether glue your beads and stay tubeless( sometimes works) or put tubes in.

with radials causing tube probs i have never heard of this happening. when a tube is installed in any tyre a good dose of talcum powder is added to stop chaffing which causes punctures.in my offroad wheels i run heavy duty tubes and a lilght bead of silicone around the inside of the bead as well to help, makes getting the tyre off a bitch but helps keep the tyre on the rim,and im a cheap bastard and wont pay out for bead lock rims so silicone is my friend

hope this adds some brain strain for ya

[wopass]

ohh yea,,

and if you go for a trip, check your wheels when you get home for bead bulge,,ie: when you can see a gap inbetween the bead and the rim as shit is in there, if there is, remove the whell ,pop the tyre off, clean it out, and re-do the silicone, this is especially important if you have tubes as a small bit of shit or a stone on the inside of you wheel WILL puncture the tube.

just my thoughts,,, silicone is my friend

[DaveM]

I'm about to put in tubes, and am thinking of drilling the valve hole closer to the center of the rim, as I've had a few valves torn out in the past.
Anyone else done this? Any pros/cons?

Cheers,
Dave

[DieselBoy]

Or you can do this:

[DJ]

or you could use a hose clip

[wopass]

i allways wondered where nissan owners kept thier nuts now i know


good idea too

[lilpigzuk]

Been using hose clamps for years. Easy and cheap

[HJ60]

Thanks Guys for all the suggestions.

Did the Wellington south coast on Wednesday at twenty PSI and on the way back a chap in a Suzuki was keen to follow me out as he got stuck a few times. He got stuck again for a while on the way back following in my tracks.

That was a bit interesting him being in a much lighter vehical than my 2 ton plus cruiser I expected him to have no worries.

In this case maybe size (and lowered pressures) does matter

At the end of the trip I pumped up the tyres and the left front one went flat soon after!

The tyre valve had packed up and I discovered the spare wheel did not fit over the front disc brakes.

Take front flat off
Take rear off and fit to front
Fit spare to rear

No problems if you carry two jacks

Tip - check that the spare fits on both drum and disc brake wheels.

Cheers, Rick.

[wopass]

ahh ,, the old spare wheel dont fit trick, hate when that happens.
as for the cruiser being heavier making it better,yes i have found that as well on the sand, i think its because its a heavy beast it makes the tyres bulge more when pressure dropped giving it a much increased footprint whereas on the lighter vehicles the tyre pressures have to be much less to have the same effect on footprint,

GO GO THE BIG FAT CRUISERS

speaking of cruisers, mines nearly finished, oooooohhh i cant wait......