TPU inner tubes

[Pblakeney]

If you are still putting 100psi into tyres what is the total system weight and tyre size? 100psi seems pretty high these days.

It was always the appropriate pressure, and always will be.
25mm.

 

[SWMc]

Question : Do TPU Tubes loose air faster than butyl tubes, and if so does 2-weeks suggest a micro hole?
(Have checked valve and it’s secure)

Yes, faster than butyl tubes, maybe 15psi loss (from ~80 psi) in a week. I've not had one go completely flat while in the garage though even after a month, maybe you have a dodgy valve or the area around the valve seems to be a common leak path.

 

[Cycling Badger]

Yes, faster than butyl tubes, maybe 15psi loss (from ~80 psi) in a week. I've not had one go completely flat while in the garage though even after a month, maybe you have a dodgy valve or the area around the valve seems to be a common leak path.

Thanks - the tyre was probably around 45 PSI and was flat enough that I could see tyre was flat. So I _guess_ it was down at 10 PSI or less. Must be a very slow puncture. Bloody annoying as I‘ve rode on it twice and it was expensive - won’t be buying another one :-(