Tom B
Guru
- Location
- Lancashire
By catastrophic I mean an encounter with a Stanley knife blade or ripping out a sidewall on a jagged rock (both are things that have happened to me). The tyre holds the pressure and the inner tube only has to be airtight. Inner tubes don't have catastrophic failures unless the tyre does. I am more fussy about tyre condition!
Poorly executed puncture repairs are another matter all together! You and I both know that there are some people who shouldn't be trying to patch inner tubes.
I know some patches that shouldn't be allowed to patch tubes too. Starting with that shoot that you cut out yourself with no feathered edges. I was disappointed with my most recent set of red/black Tip patches as they went hard and cracked.
Over the years being responsible for a bike "fleet" and the subsequent pool of tubes I've repaired more tubes than I care to remember. Failures of repairs have been down to my crap workmanship or crap materials. Failures have without exception been early failures within minutes or hours.
My favoured use for old tubes is as tree ties, they allow some movement and growth and dont chaffe. The local nature reserve took a bunch from me last summer for the same use.