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Old 07-31-2010, 03:11 PM   #11
Water Warrior 2
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Re: Flat Rear Tire

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Originally Posted by blaine
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36 spokes hooked into a rim means you have 36 places to leak air if no tube is used. Cast wheels usually are equiped with tubless tires but there are a few exceptions. If you have tubless tires on spoked wheels there is probably a tube inside. There are no ill effects running a tube in a tubeless tire.
The spokes hook to the outside of the rim,leaving the rim one piece for tubeless tires.A lot of the MOTO GUZZI came with the same concept.
Also the valve stem hole on a tubeless tire is larger to accommodate the valve stem.
Gotta disagree with you on the valve stem hole size. Vtrom came tubeless and later had a tube installed. No problems encountered with fit. Now back to tubeless, no problems.



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Old 07-31-2010, 03:16 PM   #12
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Re: Flat Rear Tire

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Originally Posted by blaine
Quote:
Originally Posted by dhgeyer
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Originally Posted by blaine
The spokes hook to the outside of the rim,leaving the rim one piece for tubeless tires.A lot of the MOTO GUZZI came with the same concept. Also the valve stem hole on a tubeless tire is larger to accommodate the valve stem.
BMW has made some models like that, although I don't think any of them are current. I could be wrong about the second statement.
They are still used somewhat,but if you get a bent wheel they are very hard to get true again as they cannot be straightened the same as a conventional spoked wheel.
:smallrawk:
About 3 weeks ago in the local shop a fellow was picking up a slightly bent GS1200 rear wheel. It could not be trued due to it's size and construction. A complete rear wheel price tag would be a heart stopper.
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Old 07-31-2010, 03:21 PM   #13
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Re: Flat Rear Tire

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Originally Posted by Water Warrior
Gotta disagree with you on the valve stem hole size.
And you would be wrong. Sorry.

The stem hole usually is larger for a tubless rim to accomodate the larger "pop in" stem that must seal the hole and hold pressure.

The smaller stem of a tube fits in there just fine, however, and there is some reinforcement around the base of the stem that prevents it from bulging out. Sometimes there is even a ring you screw on the outside to firm it up even more.

The smaller stem hole on a tube type rim should give you pause if you try to put a tubeless tire on it.......and the stem won't fit in the smaller hole. Alas, some folks are so dense that they drill out the hole to MAKE it fit. :roll:
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Old 07-31-2010, 03:26 PM   #14
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Re: Flat Rear Tire

Easy, did you find this out from personal experience ? :lol:
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Old 07-31-2010, 03:34 PM   #15
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Re: Flat Rear Tire

[quote=Easy Rider]
Quote:
Originally Posted by "Water Warrior":20fdjvpm
Gotta disagree with you on the valve stem hole size.
And you would be wrong. Sorry.

The stem hole usually is larger for a tubless rim to accomodate the larger "pop in" stem that must seal the hole and hold pressure.

The smaller stem of a tube fits in there just fine, however, and there is some reinforcement around the base of the stem that prevents it from bulging out. Sometimes there is even a ring you screw on the outside to firm it up even more.

The smaller stem hole on a tube type rim should give you pause if you try to put a tubeless tire on it.......and the stem won't fit in the smaller hole. Alas, some folks are so dense that they drill out the hole to MAKE it fit. :roll:[/quote:20fdjvpm]
:plus1: I have seen people doing this and sealing spoke nipples trying to convert to tubeless. :roll: :rawk:
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Old 07-31-2010, 05:36 PM   #16
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Re: Flat Rear Tire

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Easy, did you find this out from personal experience ? :lol:
Right past the point of realizing that the stem wasn't going to fit........and going back to the shop to ask if they had a smaller one......... :roll:

The good news is that nobody ELSE was in the shop at the time.
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Old 08-01-2010, 01:28 AM   #17
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Re: Flat Rear Tire

[quote=Easy Rider]
Quote:
Originally Posted by "Water Warrior":38xm57bf
Easy, did you find this out from personal experience ? :lol:
Right past the point of realizing that the stem wasn't going to fit........and going back to the shop to ask if they had a smaller one......... :roll:

The good news is that nobody ELSE was in the shop at the time. [/quote:38xm57bf]
That is funny but worth the experience. I'm sure the shop guys knew you would be back.
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Old 08-01-2010, 05:53 AM   #18
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Re: Flat Rear Tire

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Originally Posted by Water Warrior
Vtrom came tubeless and later had a tube installed. No problems encountered with fit.
That's because you put a tube (with a small valve stem) into a hole (large diameter) designed for a tubeless valve. Try putting a tubeless valve (large diameter) into a tube hole (small diameter) & you'll see that it works one way, but not the other.
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Old 08-01-2010, 10:03 PM   #19
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Re: Flat Rear Tire

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Originally Posted by Water Warrior
Vtrom came tubeless and later had a tube installed. No problems encountered with fit.
That's because you put a tube (with a small valve stem) into a hole (large diameter) designed for a tubeless valve. Try putting a tubeless valve (large diameter) into a tube hole (small diameter) & you'll see that it works one way, but not the other.
Alright already! You win, I admit to having a senior moment. :lol:
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