UPDATE:
It is now 'O-Fish-L thorn season in my area...
picked up a very small thorn - about 3mm long - which went thru the thread, just below the normal riding surface, so a thinner area on my Rubino Pros...
I had TPU tubes.
On removal of the tube/ I was able to determine where the puncture was - it was almost undiscernable... tiniest puncture I've ever had - but a puncture, none the less.
Replaced with Butyl backup tube.
On getting back to the yurt, I proceeded to do the repair... cleaned the tube, lightly scuffed the TPU tube in the area of the puncture, then cleaned again with isopropyl alcohol.
Placed Park Tools GP2 adhesive patch (claimed to work with TPU...) centrally over the puncture.
Mounted TPU tube to wheel and pumped to riding pressure - 72 psi.
Seemed to hold pressure - but not for any length of time - became quite soft in 2 hours...
not good...
so I might go to LBS and see if they have the tubolito patches...
Has anyone else had to patch their TPU tube ??? Sucessful ??? What did you uses/do???
Ride On
Yuri