Dec66
A gentlemanly pootler, these days
- Location
- West Wickham
In recent weeks I've had three instances of tubes letting go, apropos of nothing. They are pumped to 100psi. The tubes are supposedly able to take that pressure. Evidently they can't.
I'm suspecting I've been sent a crap batch (10 X ITS tubes with long stems from InnerTubeShop.com; I'll be on to them in the morning). One thing I find curious, though; the split always seems to occur at a point just over a hole in the rim where the spoke screws in (not the same one each time I hasten to add). I know this, not only because I can work it out from the position of the split in relation to the valve, but also because when the tube lets go it the escaping air puts a small rip in the rim tape.
Why would they go at that particular point, I wonder?
I'm suspecting I've been sent a crap batch (10 X ITS tubes with long stems from InnerTubeShop.com; I'll be on to them in the morning). One thing I find curious, though; the split always seems to occur at a point just over a hole in the rim where the spoke screws in (not the same one each time I hasten to add). I know this, not only because I can work it out from the position of the split in relation to the valve, but also because when the tube lets go it the escaping air puts a small rip in the rim tape.
Why would they go at that particular point, I wonder?