They say they are for 24-30 tyres but will work with 23mm on “modern” wide wheels. I’ve a Zipp 808 and a Zipp Super 9 which are a couple of years old, with Conti 23mm TT’s on them - anyone know if they’ll be okay? TIA
Tubes are like gases and liquids - they fill the space they’re in. You should be alright with those tubes even in a slightly narrower rim/tire combo. Just make sure you don’t pinch them during install (baby powder helps with this) and you’ll be okay.
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