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This is why I always align tyre labels and valve and if a weird flat happens (no glass, etc) I check to find where the tube holed. Inside or outside of the tube for starters? If it's outside, double check the tyre, checking the bead and flexing the rubber to see for any embedded wire/glass.
If it's inside the tube then you've got a rim or rim tape issue (fuck you, TABR 2017!).
hippy
jakemcree
Recently bought some Continental 25-32 Race28 W tubes to go with a new set of GP 4000S II tyres (28mm). As someone who's never had any major issues with tube/tyre combos before I've had three blowouts in the last week, one at speed which was pretty sketchy. I imagine the tube must be getting pinched somewhere but once pumped a little and rolled about I can't see any tube protruding. Any one had issues with this combo before? Might switch to Schwalbe tubes...