29" latex tubes

Discuss light weight issues concerning mountain bikes & parts.

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timoby2k
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Joined: Mon Mar 15, 2010 11:50 pm

by timoby2k

has anyone ever seen a 29" latex tube, or has anyone used a 26" tube and stretched it? i am interested in using this setup in a racing only situation for lightness and pinchflat resistance so air loss should not be a big issue.

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madcow
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by madcow

Challenge make some that are 700x 30/35, but I'm not sure if they'll strech enough to fit a 45/50mm tire. They are pretty thin to start with.

timoby2k
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by timoby2k

i was aware of those. i plan on running them in a 29x2.1. wasn't sure if it would be a better idea to stretch a 26x2.1 or a 700x35?

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Griswald4x4
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by Griswald4x4

Just out of curiosity, Why is tubeless not an option?

On another note I have successfully run 26" latex tubes in my 29er before, albeit for hill-climb application only.
Superflies!

timoby2k
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Joined: Mon Mar 15, 2010 11:50 pm

by timoby2k

not ready to put out the cash for a tubeless set up. im sure i would like to go tubeless some day but right now right now. i have a superlight set of rim brake wheels now. i think my set up is lighter than a tubeless disc set-up, but that is another whole discussion.

JK
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by JK

I use 26" Latex Michelins in my 29" tires all the time. Have you ever pumped up a latex inner tube outside of the tire? It gets really big... The 26"->29" stretch is a piece of cake for these tubes. Don't worry.

I'd rather use a 26" latex tube than a stretched 700x35 tube. The latter would get very thin walls, the first would not.

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mattpage
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by mattpage

I've used Michelin Latex 26" tubes in 29er wheels before, never had a problem.

rasse1977
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by rasse1977

Only problem I've found so far is that the 26" latex tubes can be a little difficult to mount. If you want to change a tube e.g. during a race it will take a little longer to put in a 26" tube than a 29" tube...

checky
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by checky

Maybe Bontrager has.
They have lots of 29er stuff and also Latex tubes.
:noidea:

JK
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by JK

rasse1977 wrote:Only problem I've found so far is that the 26" latex tubes can be a little difficult to mount. If you want to change a tube e.g. during a race it will take a little longer to put in a 26" tube than a 29" tube...


Gotta train on that a bit. I start opposite of the valve hole and use a foot to hold the tube in the tire, while I work the tube in on both halves of the wheel.

No reason to use heavy 29er specific tubes or 700c latex tubes that are too thin to be safe. Just use 26" latex.

Ced
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by Ced

What width should you recommend on a 2.2 x 29 ?

36mm
or
42mm


Thanks,
Ced

grover
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by grover

36mm or 42mm refers to valve length I believe, not width.

Ced
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by Ced

;o)))


Even better, it's in german and I don't speak german ;o)

Ced
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by Ced

you're right, the difference is the valve model, diff in valve length is only 2mm

mattr
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by mattr

timoby2k wrote:not ready to put out the cash for a tubeless set up. im sure i would like to go tubeless some day but right now right now.
Convert your existing wheels to tubeless. No need to buy new wheels.

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