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Old 2016-10-25, 04:52 AM   #1
unidom7
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36in Tube Options

I have a Nimbus Nightrider and today I had a full on blowout. The tube was almost 8 years old so I am not too surprised. I am just trying to weigh my options seeing as the tubes for 36ers are $27-$38 I am thinking about going tubeless and I have read all the threads on this and not sure if it is the right option for me. I know people stretch tubes for like 26ers onto 29ers and I was wondering if anyone has successfully stretched a 29in onto a 36in? if anyone knows any options for cheaper tubes I am down for that. I am not too concerned about weight, more about price.
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Old 2016-10-25, 05:35 AM   #2
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My understanding is people use 29" tubes quite successfully on 36's but I am not a distance rider so have never done it myself..
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Old 2016-10-25, 07:26 AM   #3
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Thank you. I just did tons of searching.... going to try a 29in and hope for success. I will let you know how it went!
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Old 2016-10-25, 08:57 AM   #4
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I think it boils down to 2 options - if you want to save weight - get a 29" tube or a Foss 36".
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Old 2016-10-25, 01:36 PM   #5
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if you're using an 8 year old tube, you may have the tube stem that is large. A 29er tube or a foss tube have a valve stem that is a much smaller diameter. Technically this can cause issues, but I've seen people run a tube with a valve stem too small and it works. I use a 29er tube in mine. Get some talc powder and powder the crap out of it. Pump it up so that it's round, stretch it over the rim, then leave it slightly inflated just to bring it into shape while installing the tire with your fingers only. You'll loose a little more air over time than a full 36er commuter tube, and save quite a lot of weight. I did not have as much success with a 29+ tube as it's too wide for the tire and developed a bulge. Stick with the plain old 29 x 2.4 tube.
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Old 2016-10-25, 01:46 PM   #6
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What about a 32" tube? Are those a lot lighter than a 36er tube, but easier to install than a 29er tube?
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Old 2016-10-25, 06:16 PM   #7
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Ok so I bought a 29in specialized tube from my local bike shop. It was the only schraeder valve 29 they had. I inflated it and am letting it sit to round out for a little then get some powder and try to install tonight. I will let you know how it goes. I looked and the stem on the tube was a bit bigger on the old one. How big of a problem is this?

I don't want to buy a 36 unless I have to because they are just kind of ridiculously priced plus I have to pay for shipping.
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Old 2016-10-26, 04:36 AM   #8
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Plenty of people have used a 29" tube in a 36 with no issues (including myself). To get around the large valve-stem hole thing I just wrap the valve stem in some tape to make it a snug fit.

You will be amazed in the difference dropping a bit of weight at the tube makes on a 36er, it's a great feeling, unless you like momentum.
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Old 2016-10-26, 05:51 PM   #9
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Question

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Originally Posted by saskatchewanian View Post
Plenty of people have used a 29" tube in a 36 with no issues (including myself). To get around the large valve-stem hole thing I just wrap the valve stem in some tape to make it a snug fit.

You will be amazed in the difference dropping a bit of weight at the tube makes on a 36er, it's a great feeling, unless you like momentum.
Wouldn't a 32" tube be an easier, better fit and also a lot lighter than a 36er tube, or isn't there much weight difference between the 32" & 36" tubes?
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Old 2016-10-26, 06:00 PM   #10
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Originally Posted by MuniAddict View Post
Wouldn't a 32" tube be an easier, better fit and also a lot lighter than a 36er tube, or isn't there much weight difference between the 32" & 36" tubes?
Theoretically, yes it would. I had bad luck with the quality of my 32" tube, however. It just kind of didn't hold air very well. I think this happens with tubes in general. They're a commodity item, so you get bad ones from time to time. So I just went with a 29" tube, because they're so cheap and easily obtainable. Just toss and replace when necessary. (I haven't had any problems with the 29", btw, either in my 32" or in the 36", when I still had it.)
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Old 2016-10-27, 02:13 AM   #11
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Sorry Terry, I didn't think you were serious.

If the 32" tube is built like a standard tube it might be the best choice, but if its thick like the old 36" tubes it wont stretch very well making it heavier and less ideal than a 29" tube. I've never seen one and am not about to special order one when 29" tubes are cheep, available, and work quite well.
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Old 2016-10-27, 06:04 AM   #12
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.... It just kind of didn't hold air very well. I think this happens with tubes in general. They're a commodity item, so you get bad ones from time to time.....
My experience is similar, except Schwalbe tubes. They hold air very well.
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Old 2016-10-27, 02:45 PM   #13
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My experience is similar, except Schwalbe tubes. They hold air very well.
I agree. I special order the Schwalbe tubes, because they hold air well, and also because you can get them with fully-threaded valve stems (which I like).
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Old 2016-10-27, 05:20 PM   #14
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I've been using a 32" tube for over a month now. It's great. Maintains the pressure, and easier to mount the tire over than a 29".

I'm sold on the 32" tube for the 36.

Cut from my 9/05/2016 post:
I had tried the foss tube in my 36, but I didn't like putting air in the tube so often. Currently trying out using a 32 inch(Kent/Walmart) tube to reduce the weight to about half of the standard 36 inch tube. 476 std36 vs 264 kent/walmart32 grams.

Had a hard time getting the tire on with the 32. Like a 29 inch tube, the smaller tube gets in the way of allowing the tire to seat deep in the rim when mounting. But, like the 29 inch tube, the fix is to add some air to the tube so that it expands away from the rim when mounting the tire.
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Old 2016-10-27, 08:06 PM   #15
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I agree. I special order the Schwalbe tubes, because they hold air well, and also because you can get them with fully-threaded valve stems (which I like).
Very cool. I hadn't seen these before. I had a similar configuration with the Presta valves on my mountain bikes (fully threaded stem with a nut), but not for anything with a Schraeder. I can think of a number of occasions where this would have been really useful, including just yesterday.
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