Foss inner tubes - are they really as good as they claim?

[astranoc]

I have em and they are 58g
I think 80g is for the MTB version or it includes the box they come in...

Is that 58g for the foss 20-25 version?

[rayms]

I ordered a 23/25mm tube off of ebay from Hong Kong and the weight is 96 grams! I did not notice in the description, there is a claim of 89 grams.
It has a feather on the box. Ha

[dereksmalls]

I don't use them on the road but use them on my CX bike when I'm riding trails. they hold up pretty well on rough rock strewn trails. Not worries about the weight of them offroad though

[rayms]

How many days do you get in between pumping these tubes up?

[WMW]

They are heavy (~100g for a road tube), the Crr is a little better than a butyl tube of about that weight but worse than latex, and they leak air faster than butyl but not as fast as latex.

[desperado95219]

Does anyone know how these handle braking heat? I am tempted to try them on my tandem, but always concerned about heat buildup on long downhills.

[Gumby]

Before you jump on me for posting this decidedly randonneur take on a weight weenies sight please know I crossed a significant distance unsupported on a very lightly equipped road bike (50lbs)
May 1, 2014
FOSS INNER TUBES
I committed to using them and switched over my tubeless set up to run FOSS tubes in my Hutchinson tubeless tires (700x25)on Mavic cpx 33 rims
NO FLATS NOTHING BUT PRAISE. THIS PRODUCT WORKED GREAT FOR ME.
in researching FOSS tubes after the fact I find a lot of negative articles


So while many would be concerned with rolling resistance, my biggest fear was flatting. I didn't.
if you feel motivated please leave a response?

[DirtiousDirte]

Saw these the other day and thought I'd bring this post back from the dead.

Any current users of Foss tubes? Thoughts?