I had a pretty shitty crash a few days back. While cornering i had a sudden flat tyre, causing my tyre to run off the rim and me crash. At first i thought the inner tube simply exploded, but when i took it out it had all these very small puncture holes in it.
Its almost impossible that these are from glass, small rocks or other debris (i think). The tyre itself is clean on the inside
Conti GP 5000 tyre
TPU inner tube
Any ideas?
by Yeah-Yeah-Yeah-Yea
8 Comments
Considering the almost straight line they make, my guess is pinched tube
Either tube was improperly set (pinched from the get-go) or got dislodged in some way (sharp turn + not inflated enough?) and pinched by the tire.
Is your rimtape covering all the spokeholes?
Fuck TPU
Did you use a stapler as a tyre lever when fitting the tyre and accidentally stick a staple in the inner tube?
Did you put a thick layer of tape under jt ?
What kind of pressure did you use? What’s your rim width, tyre width and system weight?
Wide tyres on narrow rims at low pressure can “collapse” sideways in turns. But I’ve only really experienced this with 33mm tyres on 13mm (inner width) rims with pressures as low as ~1.8bar and ~75kg system weight.
Looks like a snake bite, happens when you don’t have enough air in your tyre and as the carcass of the tyre deforms it pinches the innertube and causes this.
Try upping your psi.
My guess if it been in the tyre for a long time I was probably glass