To be honest I don't know what happened exactly...Tifosiphil wrote: ↑Thu Jul 21, 2022 2:04 pmIn this situation where the tyre is blown off the rim it is almost always one of two scenarios. The tube was pinched between the rim and tyre and didn't blow out inititally but at some point during your ride, I've had this before with tubes where they are fine but as soon as you ride they puncture.nickf wrote: ↑Thu Jul 21, 2022 1:30 pmMaybe the tube was not properly installed? Its easy with latex during installation to get the tube pinched between the tire and rim. The tube will hold but eventually will creep and blow off in a sudden event.
The second option is you got a flat and carried on riding/slowing down and pulled the tyre off the bead unfortunately neither problem would have been a latex tube or Vittoria's fault, just user error.
The facts:
- tires (Vittoria Corsa) and tubes (Challenge latex) were rather new...only few houndred kms.
- this was not the first ride after initial installation of the tires and tubes, I had few houndred kms before. So I don't think it was faulty instalation and I always check instalation after.
- it happened on descent, but nothing that would heat up the rims or melt tube
- accident was accomanied by loud explosion
- 20 minutes before accident I had to climb over some 50 meters of paved road under construction, maybe there was some damage to the tire there but that would probaly manifest immediatley.
- minutes before explosion I heard two pings like when spoke breaks or when you launch a rok with a side of a tire. Both times I stopped to inspect wheel and couldn't find anything. After that I went down slow and with cauton which probably saved my arse from falling and injuries.
My impression is that tire carcass fell appart and pinging sounds were cotton threads breaking under pressure. Once enough threads broke there was nothing to keep preassure anymore and it blew. After it blew it also blew off tire from its bead or tire was taken from the bead while dragging the wheel on the ground for some 20 meters. The reason I had to drag the wheel is because tube got stuck arround the brakes stopping wheel from turning.
Here is another picture showing damage on the tire. I'm not sure if this is where tire blew, where it was dragged or both. Whatever happened I don't blame the wheel for the cause of the incident.