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Description

Every gram counts.

The Challenge S.C. Latex Tubes are significantly lighter than standard butyl tubes for the less rotational mass and lower rolling resistance when you're competing and racing against the clock. They're also more elastic and resistant to punctures than regular butyl tubes. However, because of their highly porous nature, they tend to lose air more quickly than their butyl counterparts, making them better suited for your race-day wheels.

  • Latex tube with 47.5mm Presta valve
  • 86 to 92-gram weight (depending on size)

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Challenge S.C. Latex Tube

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Here's what others have to say...

5 5

No flats

  • Familiarity: I've put it through the wringer

At Dirty Kanza 200. 50 psi. I love these. (I also just jinxed myself)

5 5

Holy Lightness!!!

  • Familiarity: I've used it several times

Man these tubes are light!!! Love them, no problems with flats at all, just be careful when installing them, they can pinch easily. I chalk them up before install, and it goes in just fine!! Just wish they were a little cheaper ;)

The pic appears to show a removable valve...

The pic appears to show a removable valve core, just want to confirm this before purchasing.
Thanks.

Best Answer Responded on

These do not include at remoeable valve core.

Responded on

Mine have removable valve cores. Can be a bit of a pain if you do not tighten them down before attempting to inflate.

Do you think the 19x28 would be OK with a...

Do you think the 19x28 would be OK with a 30-32mm cross tire? I would rather not carry the extra bulk of the 29-38.

Best Answer Responded on

Hey Steve,
Technically speaking you can run these in that tire, but its not a good idea. The more the latex stretches to cover the volume of the tire the more likely it is to pop. Additionally latex tubes are porous and leak air continually. If you stretch them further with a wider tire that becomes more of a problem.
I hope this is helpful. If you'd like to talk more about other options, please feel free to give us a call.

5 5

Super smooth ride

  • Familiarity: I've put it through the wringer

I switched from the Vittoria Latex tubes to these, much better. The Vittoria's are too thin, they are super light (about 50gm) vs these that are 70gm. I'll take the extra thick, but still pretty light ones - these :) I chalk them up pretty good with powder and install is easy. Yes, they loose about 30# of air overnight, but I always top off my air anyhow before every ride - just a few more pumps, and it's also good for your upper arm strength :) Make your bike ride just that much better - say 10% improvement on normal pavement. That's a pretty cheap upgrade. I do not notice any increase in punctures at all - am running Continental 4000S without any issues, other than being super awesome :)