| Author |
Message |
    
Michael Villanueva (Michael)
| | Posted on Friday, February 15, 2002 - 10:07 am: | 
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All the tires I have seen for many years now are tubeless. Is it possible to insert and use inner tubes?
Bike tires have goo -- is there a similar product for off road tires?
Cactus thorns can go through most about anything, so I am wondering what my options are for an upcoming trip.
Thanks |
Greg Davis
| | Posted on Friday, February 15, 2002 - 02:25 pm: |
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You could, but you'd have to have the wheels drilled for a second stem, kinda like them Nascar wheels! |
Dean Brown (Deanbrown3d)
| | Posted on Friday, February 15, 2002 - 03:21 pm: |
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Why? Is the valve stem a different size? I have read the same kind of thing - and inner tubes would be great for some emergencies.
Dean |
Greg Davis
| | Posted on Friday, February 15, 2002 - 03:25 pm: |
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Well, to be honest, at first I thought that he meant to keep the tire inflated as is, and have the tube in there as a backup, like the safety liners that Nascar uses. If so, he would need a second hole to allow for the stem from the tube. He could then air up his tubes and then air up the tires. Two independant systems. I guess if the stem lined up with the hole and he didn't want air in the tires, just in the tubes, he could use the existing hole. |
John Parsons
| | Posted on Friday, February 15, 2002 - 03:38 pm: |
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Don't know what the second hole thing is all about. If you go with tubes make sure you buy "radial" tubes (assuming you are running radials). You may come across some shops that do not want to install tubes in radials but if you look around you should be able to get it done. I sued to be a staunch advocate of running tubes for wheeling. Bent rims, dirt and debris stuffed up the bead during aired down situations all contribute to flat tubless tires. When I rolled my Series a few years back you could put your fist between the rim and tire but the tube held air and got us home.
There are benefits to tubless as well though. Did the Border to Border run in '98 and drove through some pretty thorny areas in Arizona. Some of us with tubes were getting flats for some time aafter the run due to the thorns that got stuck inside the tire. Now I am running a Range Rover on 7.50x16's. I don't have room for a spare inside so I have decided instead to carry a good tubless plug kit (Safety Seal) and a tube (just in case) and take my chances. You will need air of course, either way. The downside to tubes is that they will go flat instantly whereas a thorn or the like in a tubless is likely to just leek slowly. For your thorn situation I would be tempted to get a plug kit and stick with tubeless. |
Greg Davis
| | Posted on Friday, February 15, 2002 - 03:54 pm: |
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Maybe I don't know what the hell I'm talking about (happens all the time). Couldn't you run tubes in your existing tires? That is, keep the tubeless tires, have a second hole drilled for the stem of the tube, air up the tubes, and then air the tires? That way, if you lose air in your tire, the tube is still inflated. Nascar does this to keep the cars from losing control when a tire lets go at 200 mph. |
Bill Bettridge (Billb)
| | Posted on Friday, February 15, 2002 - 04:36 pm: |
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Where's Muskyman? On the EE board I think it was him talking about some Kevlar tubes that he custom makes and runs. They allow pressure, but don't expand to fit the tire cavity like a rubber tube - they merely expand to their maximum fabricated dimension. Then allows the tires to be aired down extremely low without any chance of losing it.
Sounds pretty slick in theory anyway. He mentioned that he'd run them for quite some time. |
Michael Villanueva (Michael)
| | Posted on Friday, February 15, 2002 - 09:35 pm: |
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So I take it there is no goo for auto tires? But thanks for the comebacks. Excellent information -- especially the pluses and drawbacks to tubes.
Michael |
Ron
| | Posted on Friday, February 15, 2002 - 11:06 pm: |
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Its called slime.
Have not tried it but I will on the next set. |
Steve
| | Posted on Friday, February 15, 2002 - 11:18 pm: |
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Mike,
There are stopleak type products which can be used in tubeless tires. Motorcycles have used a product simmilar to "Slime" which is used in bicycles. You might try an offroad motorcycle shop. The use of those products does not require an innertube. Don't run tubes as a flat avoidance technique where punctures are the concern. Tubes are MORE likely to go flat than tubeless. As John noted above, low air pressure wheeling being the exception where knocking the tire off the bead is the concern. Commercial trucks have switched from tube type tires to tubeless for just that reason. 1 nail in a tubetype tire will cause it to go flat almost immediately whereas 1 nail in a tubeless will only cause a leak which will cause a flat over time, a day, as opposed to immediately. Those and larger holes can be plugged with a good plug kit. An emergency tube can be kept on hand for getting you home when you destroy a sidewall or do major dammage to the tread.
Steve |
muskyman
| | Posted on Friday, February 15, 2002 - 11:21 pm: |
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guys,
I'v been running my tire lockers for almost 7 years
I built the first set in 94
I have 55,000 miles on one set with only 1 tube failure
and this is airing them down hundreds of times
I am building a set right now for 16" rover rims
I should have my first rover set done in a few weeks
they work so well I can let all the air outa my tires and do dounuts on cement and never pop a bead.
and because they dont modify the tire or sealing area of the rim they do not violate any DOT regs
this is a tire at 4 or 5 psi ready to wheel
: |
muskyman
| | Posted on Friday, February 15, 2002 - 11:28 pm: |
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guys,
I'v been running my tire lockers for almost 7 years
I built the first set in 94
I have 55,000 miles on one set with only 1 tube failure
and this is airing them down hundreds of times
I am building a set right now for 16" rover rims
I should have my first rover set done in a few weeks
they work so well I can let all the air outa my tires and do dounuts on cement and never pop a bead.
and because they dont modify the tire or sealing area of the rim they do not violate any DOT regs
this is a tire at 4 or 5 psi ready to wheel
: |
muskyman
| | Posted on Friday, February 15, 2002 - 11:29 pm: |
|
guys,
I'v been running my tire lockers for almost 7 years
I built the first set in 94
I have 55,000 miles on one set with only 1 tube failure
and this is airing them down hundreds of times
I am building a set right now for 16" rover rims
I should have my first rover set done in a few weeks
they work so well I can let all the air outa my tires and do dounuts on cement and never pop a bead.
and because they dont modify the tire or sealing area of the rim they do not violate any DOT regs
this is a tire at 4 or 5 psi ready to wheel
: |
muskyman
| | Posted on Friday, February 15, 2002 - 11:30 pm: |
|
guys,
I'v been running my tire lockers for almost 7 years
I built the first set in 94
I have 55,000 miles on one set with only 1 tube failure
and this is airing them down hundreds of times
I am building a set right now for 16" rover rims
I should have my first rover set done in a few weeks
they work so well I can let all the air outa my tires and do dounuts on cement and never pop a bead.
and because they dont modify the tire or sealing area of the rim they do not violate any DOT regs
this is a tire at 4 or 5 psi ready to wheel |
Dean Brown (Deanbrown3d)
| | Posted on Saturday, February 16, 2002 - 07:06 am: |
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Hic hic ! where did I place that photo hic hic on Friday hic night hic hic hic  |
S. Wong
| | Posted on Saturday, February 16, 2002 - 09:38 am: |
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I love to mountain bike, and just in case you didn't know the new technology these days are tubeless tires. I use them and they are great. You can run lower tire pressure with out getting flats. Some people even say that they are more efficient because you don't have the friction between the tire and the tube, but I don't know if this is true. Anyways, I like them a lot more then my tires with tubes in them. They ride and work much better. Well I hope this helps.
One more thing, at my local gas stand they sell tire slime made for big tires on 4x4s. I have used it before and it worked, but it was only a small leak.
Somer |
muskyman
| | Posted on Sunday, February 17, 2002 - 03:14 am: |
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:
theres that pic! |
Adrian Brewster
| | Posted on Sunday, February 17, 2002 - 02:11 pm: |
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Hi all
I am also looking at putting a tube in my steel 'tubeless' rims. What I notice though is that the position for the valve on the rim does not match the position of the valve on a 750r16 tube. It is off to the outside and at a greater angle.
Comparing this situation with 5,5" tube tyre rims, here the valve positions/angles are perfect. From my experience of MTB tyres, this is where there is a lot of stress.
I wonder if there are other tubes with the right geometry?
Regards |
steve wallin
| | Posted on Monday, February 18, 2002 - 01:07 am: |
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Adrian,
I carry a couple of tubes when in desert country in Australia as a backup to two complete spares. The tubes that will fit disco rims are 205R16 radial tubes. I run 225/75 and these tubes are cool, not sure about big rubber but i guess they will work?
-steve- |
Dean Brown (Deanbrown3d)
| | Posted on Monday, February 18, 2002 - 08:11 am: |
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Steve - do the valves of the tubes fit ok through the wheel hole? I only ask as some people have told me there is something whacky about the valves in discos being smaller or different somehow, and tubes would require drilling a bigger hole.
Dean |
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