Gravel / Gravé / Gnarmac / Groad / ATB

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hippy in reply to @Stoo61

Maybe
https://sheldonbrown.com/brandt/wiping.html

See also
https://www.cyclingforums.com/threads/flints-dont-puncture-bicycle-tires.319172/

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dau in reply to @hippy

Primitive superstitions about flints still flourish in the UK and Denmark

When I moved to Copenhagen, first week and I've got 4 flats in 5 days commuting to work.
Swapped my Clement LAS for Schwalbe marathons.

Flints are real.

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hippy in reply to @dau

Yeah, I've pulled what I would call 'flints' out of tyres in the UK for years. I'm not sure what he thought a flint was and why they didn't pierce tyres.

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