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Which 29er tube for 36"?

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  • Which 29er tube for 36"?

    Which 29er tube is the best for a 36" rim?

    I have found that Schwalbe manufacture both 60-622 and 40-635. Is the tube which is 20 mm wider more suitable than the one that is 13 mm longer?

    My chickenbrain can't figure it out.

    What brand and size do you use?
    Since I am anticipating the unanticipated, it is not a problem. hugo

  • #2
    That's a good question. I have Kenda tubes that are marked: 29x2.3-700x47/58. The box says "inline" brand, but the tube says kenda. They seem to work well, but that doesn't begin to answer your question.
    "A properly ridden unicycle is like an object in orbit: constantly falling but never landing." -Diogenes

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    • #3
      I use whatever is cheapest. I bought 10 tubes for $20 online somewhere. The key is to stretch out the tube really well before you attempt to mount it. I inflate it way past 36" and leave it to stretch out overnight. I then take great care to mount it so there are no pinches in the tire. I can go more than a year riding a lot without replacing the tube once it is set right. I get flats on my 29er muni (cactus and thorns) but almost never on my 36er. Good luck!

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      • #4
        Originally posted by osmundo View Post
        The key is to stretch out the tube really well before you attempt to mount it.
        Don't you think size and quality will influence on how long they will last? If I can avoide the wrestling it takes to switch tube by buying another brand or size I would gladly do so.
        Since I am anticipating the unanticipated, it is not a problem. hugo

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        • #5
          Originally posted by goldenchickenreincarnated View Post
          Don't you think size and quality will influence on how long they will last? If I can avoide the wrestling it takes to switch tube by buying another brand or size I would gladly do so.
          Size certainly matters. As a general rule the more rubber you have in the tube the less flats you will have, and the less often you will have to top off the air. That being said the 36" tubes are crazy heavy, and I don't mind filling my tire a little more often.

          As for quality, I worked at a bike shop for 10 years and saw a lot of different tubes that were pushed as being "high quality." In truth there have been bad tubes, but generally it is an occasional bad tube not a brand or model. For standard butyl rubber tubes I haven't seen any that I would say are categorically "higher quality."

          Avoid Latex tubes, they bleed air like crazy. Avoid PU tubes, they don't stretch that much and won't fill the space.
          "A properly ridden unicycle is like an object in orbit: constantly falling but never landing." -Diogenes

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          • #6
            I've used Continental "MTB 28" tubes in my 36" without any fitting or leakage problems so far
            Uni - The Unicycle Magazine
            www.unicyclemagazine.com
            http://twitter.com/UnicycleMag

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            • #7
              I'm using a Schwalbe 29er tube, the widest I could find at the time (I think it's something like 700x50c). I've never actually had a puncture on my coker - the only time I've needed to change the tube is when I pinched one removing the tyre to put it on a new wheel.

              There are some 29er tubes around that are advertised as 1.75-2.5" wide, which would be even better, but I've not had problems with mine. Any 29er tube is going to be way lighter than a proper coker tube, so you may as well go for the widest you can get, seeing as it's going to get overstretched anyway.

              Like somebody else mentioned, stretch the tube well by leaving it pumped up quite fat for a day or so before fitting, and put a little bit of air in it when you're fitting it to help stop it getting pinched. When I've done it (only twice in the whole time I've had my 36er - once when I got the new wheel and the second time when a spoke nipple broke) I haven't found it to be as difficult as I was expecting.

              Rob
              "Hedgehogs - why can't they just share the hedge?" (Dan Antopolski)

              "I would absolutely recommend a 29er to anyone who didn't prefer a larger or small wheel." (Mikefule)

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              • #8
                I have a Schwalbe 29 innertube the same as Rob's 36. I haven't had a single puncture the whole distance from Land's end to John o Groats. Pretty much just do as everyone has said, Overinflate the tube, leave it over night, then care not to pinch it. Also, I will add, from my (well, my dad's) own experience, when you start the process of over inflating the tube, make sure to pump it, stretch it out for a minute or so, continue pumping, stretch, continue pumping etc. This is because the first time, Dad went straight into pumping, and it blew up on him. It was quite hillarious. Except for the whiplash.
                http://prodegebanners.sitegrip.com/i...ent-173x63.jpg

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                • #9
                  Originally posted by goldenchickenreincarnated View Post
                  Which 29er tube is the best for a 36" rim?

                  I have found that Schwalbe manufacture both 60-622 and 40-635. Is the tube which is 20 mm wider more suitable than the one that is 13 mm longer?

                  My chickenbrain can't figure it out.
                  Chickenbrain indeed. A 635 mm diameter tube should be 40 mm longer than a 622 mm tube. Not 13 mm.
                  Last edited by goldenchickenreincarnated; 2009-08-25, 08:09 AM.
                  Since I am anticipating the unanticipated, it is not a problem. hugo

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                  • #10
                    Originally posted by jtrops View Post
                    That's a good question. I have Kenda tubes that are marked: 29x2.3-700x47/58. The box says "inline" brand, but the tube says kenda. They seem to work well, but that doesn't begin to answer your question.
                    I use the same ones.

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                    • #11
                      Wondering if a 32" tube would work for a 36er. Since many have used 29er tubes to save weight, I'm thinking the 32" might be an easier fit and still be lighter than a 36er tube.
                      Happy Birthday Terry! Every year you get cooler, younger and unicyclier!
                      Be our muniprohpet for many years more.
                      -Dani Buron


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                      • #12
                        How do you keep the tube from getting caught under the tire bead? I've tried reinstalling several times but I can't get the tube totally inside the bead. At least part of the tube squishes out and can't get it back inside tire.
                        Happy Birthday Terry! Every year you get cooler, younger and unicyclier!
                        Be our muniprohpet for many years more.
                        -Dani Buron


                        Website
                        Videos
                        Facebook

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                        • #13
                          If you add more air to the tube it should stay out of the way of the tire bead. I have not had that problem.

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                          • #14
                            I like the Schwalbe because you can get it with a fully-threaded valve stem with the little round nut. This is helpful because it keeps the tube in exactly the correct place, and the valve stem is never at risk of "disappearing" into the wheel when attaching an air hose. In my experience, the 29" tube works well for both the 36" and 32" wheels.
                            "I'm a unicyclist. I make my own reality."

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                            • #15
                              Originally posted by LanceB View Post
                              I like the Schwalbe because you can get it with a fully-threaded valve stem with the little round nut. This is helpful because it keeps the tube in exactly the correct place, and the valve stem is never at risk of "disappearing" into the wheel when attaching an air hose. In my experience, the 29" tube works well for both the 36" and 32" wheels.
                              Is that a presta valve then, or just a schrader that shares that feature with one?
                              Nimbus 36 & 26

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