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Title: liner sliced my tube on the rollers
Review: These are too stiff. The seem to work well preventing flats on the road but I happened to have them in my tires while I was on the rollers and I got a rear flat. A flat on the rollers! Opened them up and the end of the liner had caused a puncture in the tube. It had pinched it or rubbed against it or something... not sure how it did it but the hole was exactly at the end of the liner. Too stiff. Get the more 'rubbery' kind.
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