I have a few tpu tubes aside for spares, today I had to change one since got rekt in a race and I noticed something.
Two in er tubes feel a bit too long for a 700c wheel, and I'm not able to insert the tyre since the tube is going to get compressed.
The other one just stay tight to the rim, and I'm able to put the tyre whiteout any problem.
Ofc I use a bit of pressure before installing, and yes the pressure is the same.
Here an image how the "longer tube" looks like.
Also I have to admit that the tubes are never used.
Can be fixed in any way?
Ps. If someone is interested to know how the race ended, I just lost my 10th rank. The inner tube failed after a pot hole at the last 1.5km and I had to run toward the finish with my bike on shoulder.
At least I was able to close at the position 17/29.