Smart Tire pressure monitoring system?

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Sev
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#11 Unread post by Sev »

-Holiday wrote:
ofblong wrote:well I didnt even look at the link. my friends hummer has a tire pressure monitor that reads if the tire goes to low and then automatically fills it to try and keep a set pressure in the tires. we were on the dunes and well on dunes you need to lower your air pressure. he flipped a switch lowered it to I believe 12psi (my dad runs 3psi in his 38's but if you dont run that low you could find yourself stuck) then when he was done riding flipped the switch and it auto inflated them to the recommended tire pressure. So I "assumed" the tire pressure monitor in the link was the same type of thing.
i hope your dad has beadlocks. I would not recommend running your tires at 3psi without them, unless you'd like to learn how to put a tire back on the bead in the middle of nowhere.
Do they make beadlocks for tubeless tires?

Or do Hummers/dune truck things run tubed tires?
Of course I'm generalizing from a single example here, but everyone does that. At least I do.

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#12 Unread post by -Holiday »

ofblong wrote:
-Holiday wrote:
ofblong wrote:well I didnt even look at the link. my friends hummer has a tire pressure monitor that reads if the tire goes to low and then automatically fills it to try and keep a set pressure in the tires. we were on the dunes and well on dunes you need to lower your air pressure. he flipped a switch lowered it to I believe 12psi (my dad runs 3psi in his 38's but if you dont run that low you could find yourself stuck) then when he was done riding flipped the switch and it auto inflated them to the recommended tire pressure. So I "assumed" the tire pressure monitor in the link was the same type of thing.
i hope your dad has beadlocks. I would not recommend running your tires at 3psi without them, unless you'd like to learn how to put a tire back on the bead in the middle of nowhere.
he knows what he is doing. he has been going to the dunes for longer than ive been alive (im 28) and from when I can remember he has never lost a bead. Well that and he has never gotten stuck. Anyways its the type of tires he has on his jeep which also allow him to climb steep hills at slower than walking speed. pretty funny watching a race to see who can make it to the top of test hill the last. His f350 he keeps 12psi in that when taking it to the dunes. So it just depends on the tire/rim combo and a few other things as well but mostly the tire rim combo.
i think on dunes its a different story.

although having a slightly narrower rim for the tire helps keeping the bead on, when rockcrawling at 3psi and putting extreme lateral pressure on the tire, that thing is going to come off. I've seen it probably half a dozen times.

My main point in my last post was just to say, dont just take any tire and rim combo and expect to run it at 3psi because its not going to work out too well.
Last edited by -Holiday on Thu Jun 28, 2007 3:53 am, edited 1 time in total.
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#13 Unread post by -Holiday »

Sev wrote:
-Holiday wrote:
ofblong wrote:well I didnt even look at the link. my friends hummer has a tire pressure monitor that reads if the tire goes to low and then automatically fills it to try and keep a set pressure in the tires. we were on the dunes and well on dunes you need to lower your air pressure. he flipped a switch lowered it to I believe 12psi (my dad runs 3psi in his 38's but if you dont run that low you could find yourself stuck) then when he was done riding flipped the switch and it auto inflated them to the recommended tire pressure. So I "assumed" the tire pressure monitor in the link was the same type of thing.
i hope your dad has beadlocks. I would not recommend running your tires at 3psi without them, unless you'd like to learn how to put a tire back on the bead in the middle of nowhere.
Do they make beadlocks for tubeless tires?

Or do Hummers/dune truck things run tubed tires?
most offroad tires are tubeless on trucks including hummers. So most beadlocks go on tubeless tires, although i see no reason why you couldnt put a beadlock on a tubed tire. that said, i've never heard of a tubed tire loosing its bead. if it did i think the tube would blow up. I've had that happen on bicycles.

i have no idea what they run in the dunes, but if i had to guess its probably tubeless.
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#14 Unread post by ofblong »

Sev wrote:
-Holiday wrote:
ofblong wrote:well I didnt even look at the link. my friends hummer has a tire pressure monitor that reads if the tire goes to low and then automatically fills it to try and keep a set pressure in the tires. we were on the dunes and well on dunes you need to lower your air pressure. he flipped a switch lowered it to I believe 12psi (my dad runs 3psi in his 38's but if you dont run that low you could find yourself stuck) then when he was done riding flipped the switch and it auto inflated them to the recommended tire pressure. So I "assumed" the tire pressure monitor in the link was the same type of thing.
i hope your dad has beadlocks. I would not recommend running your tires at 3psi without them, unless you'd like to learn how to put a tire back on the bead in the middle of nowhere.
Do they make beadlocks for tubeless tires?

Or do Hummers/dune truck things run tubed tires?
depends on what your running. His Mickey Thompsons (the ones he ran 3psi in) and his paddle tires dont have tubes. I dont know what psi he runs for the paddle tires. As Holiday stated it all depends on what you use. 90% of trucks/suv's/4wheel drive cars on the dunes have tubes. Whats funny is on the dunes you ALWAYS see those who dont lower the air pressure on their tires and they get stuck. whats funny about it is the entrance to the dunes has a HUGE sign that says lower your air pressuer before entering dunes. Unless they get lucky enough to have some guy/gal willing to pull them out it costs $200 for the local tow truck to come get you. Tubed tires, from what I understand from my father, need to have 8-12psi in them to properly drive on the dunes.
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#15 Unread post by -Holiday »

ofblong wrote: 90% of trucks/suv's/4wheel drive cars on the dunes have tubes.
you mean don't have tubes, right?

unless the dunes are different then on road, most trucks and cars today dont have tubes.
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#16 Unread post by Sev »

In order to install a bead lock you need to drill a hole in the rim to tighten it down. If you drill a hole in the rim, how do you keep air inside the tubeless tire?

Now, I've only ever done/played with motorcycle tires... but the only tires I have EVER seen with a beedlock are tube type tires.
Of course I'm generalizing from a single example here, but everyone does that. At least I do.

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#17 Unread post by Skier »

Sev wrote:In order to install a bead lock you need to drill a hole in the rim to tighten it down. If you drill a hole in the rim, how do you keep air inside the tubeless tire?

Now, I've only ever done/played with motorcycle tires... but the only tires I have EVER seen with a beedlock are tube type tires.
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#18 Unread post by ofblong »

-Holiday wrote:
ofblong wrote: 90% of trucks/suv's/4wheel drive cars on the dunes have tubes.
you mean don't have tubes, right?

unless the dunes are different then on road, most trucks and cars today dont have tubes.
whoops my bad yeah thats what I ment hehe.
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#19 Unread post by -Holiday »

Sev wrote:but the only tires I have EVER seen with a beedlock are tube type tires.
no you havnt. there is a 99.9% chance whatever tire you saw with a beadlock, that is if you've ever seen one in person, was a tubeless tire. That is unless you saw an 18 wheeler offroading with beadlocks.

btw, beadlocks essentially just lock the bead in place on the rim. the drilled part of the beadlock is outside of the tire. it doesnt effect how the air is held in place.
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#20 Unread post by Sev »

The rim helps hold the air in place on a tubeless tire. Drilling a hole in the rim means you've opened that area to atmosphere.

Even with Skier's example you've got to use the special valve stem to ensure the air stays inside.

I was basically just wondering if the stem of the beadlock is sealed.
Of course I'm generalizing from a single example here, but everyone does that. At least I do.

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