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Post by Jon W on Feb 28, 2006 19:43:43 GMT -5
Hi all -
One thing I've been wondering...
Why doesn't anyone run inner tubes in their off road tires?
I've never heard of anyone doing it, but wasn't sure why. It occurred to me there is a possibility the tube could get pinched/damaged if the bead slipped/popped when the tire is aired down, but I wasn't sure if this was the reason or if it was something else... maybe cost isn't worth it?
I was thinking this way because a problem I've had with my 31x10.5 Truxus M/T tires is that as they have broken in the sidewalls have gotten very soft and they tend to get crud in/around/under the beads and leak... And it is a pain to take it to a tire shop to fix all the time...
Any thoughts?
JW
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Post by Scott on Feb 28, 2006 20:47:09 GMT -5
Are tubes available? I googled it and coudn't find any available.  Good Question! |
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Post by ddewar53 on Feb 28, 2006 21:29:40 GMT -5
Tubes in radial tires cause heat problems on the street - the sidewalls flex causing the inner tube and the inside of the tire to rub, creating heat inside the tire. Too much heat is not good for tires. As for getting too much crud in the bead, get an old-fashioned bead breaker, take the tires off, deflate them and clean them yourself. Last time I took mine to a tire shop, I specifically said "de-mount the tire, clean the bead up, both tire and rim, then remount and rebalance it". Then I stood there and watched as the tire monkey overinflated the tire, beat on it with a hammer, deflated it back to spec, and came and told his counter guy it was "All set, won't leak any more". I won't be going to Dave's Tires in Canton, MA any more.
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Post by Kevin W. on Feb 28, 2006 23:15:29 GMT -5
ahhh, kinda like this? www.staunproducts.com/beadlock.php Everything I read about these babies is that they rock! Unlike beadlocks (which aren't DOT legal) they pinch the seam on both sides of the wheel, which seems like a smart thing to me. KEV |
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Post by DOUG® on Mar 1, 2006 7:31:22 GMT -5
ahhh, kinda like this? www.staunproducts.com/beadlock.phpEverything I read about these babies is that they rock! Unlike beadlocks (which aren't DOT legal) they pinch the seam on both sides of the wheel, which seems like a smart thing to me. KEV Those are cool, Domenic has them displayed in his shop. But they are not inner tubes. The reason(s) most people do not run tubes off road are, when a tube gets a puncture it deflates immediately. There is no chance of a trail repair (plug) without dismounting the tire from the wheel and patching the tube itself. |
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Post by Kevin W. on Mar 1, 2006 8:23:35 GMT -5
Yea, I guess they aren't "inner tubes", but they do the job that Jon is looking for...
They are pretty expensive though... something like 200 each!
KEV
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Post by Jon W on Mar 1, 2006 9:27:49 GMT -5
Don - The friction/heat thing makes a lot of sense to me, now that you've said it. Is there a difference if the tire is a bias-ply? Kevin/Doug - Acutally, I have looked at the Staun beadlocks, and they are very cool... Pricey though... ~$189/ea. I wasn't looking for a "cheap" beadlock what I was looking for is a way to get around the problem of leakage because of crud under the bead... I don't care if there is a little crud in there - I just don't want the tire to leak when I air it back up.  Scott - Yes, you can get full-size tire innertubes. I found some at Summit Racing's website (which is what got me wondering)... You can find varous sizes here: store.summitracing.com/egnsearch.asp?N=115+4294923107+4294916922&NeXID=5They cost $45-$80 each, depending on the size/brand... They also have black steel wheels (US Wheel 15x8 & 15x7) for $40/ea and no shipping charges (a set of 5 is $209 shipped!)! That is what I was shopping for when I noticed the innertubes... JW |
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Post by Scott on Mar 1, 2006 18:22:59 GMT -5
How about what Nascar runs  Inner and Outer Tires
On tracks that are more than 1 mile (1.6 km) long, where speeds are faster, NASCAR rules require that tires contain an inner liner. This is essentially a second tire mounted inside the first tire. It mounts to the rim and has its own separate air supply. If the outer tire blows, the inner tire is still intact, allowing the driver to bring the car to a controlled stop.
 and to control the heat/friction thing Nitrogen Instead of Air
Most of the teams remove the air from the tires and replace it with nitrogen. Compressed nitrogen contains less moisture than compressed air. When the tire heats up, moisture in the tire vaporizes and expands, causing the pressure inside the tire to increase. Even small changes in tire pressure can noticeably affect the handling of the car. By using nitrogen instead of air, the teams have more control over how much the pressure will increase when the tires heat up.I know this is not an option for us 4x4 people, just figured I'd mention it. Food for thought  |
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Post by ddewar53 on Mar 2, 2006 7:58:41 GMT -5
Don - The friction/heat thing makes a lot of sense to me, now that you've said it. Is there a difference if the tire is a bias-ply? I can remember when all automotive tires were bias ply, and they all had tubes, so that's hard to say. Certainly tires today are not manufactured with inner tube use in mind, but as you noted, tubes are availabe, I would say probably OK with bias-plys. I have also seen inner tubes marketed as being constructed just for radial tires, but usually they were marketed as a way to keep using a older tire with a small sidewall cut which would normally be thrown away. In a case like that, the shortened life of the tire carcass would not be so much at issue |
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jps4jeep
Member
avitar? no but I have an atari though
Posts: 12
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Post by jps4jeep on Mar 2, 2006 12:18:50 GMT -5
When some people make studded tires with 1/4-20 bolts sharpened on the end for Ice racing, they use inner tubes. thats all I have sorry.
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