See photos – these tires are less than a year old and the sidewalls seem to be breaking where they touch the rim. Just a cosmetic issue or am I risking a blow-out? Thanks!

  • BradleyUffner@lemmy.world
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    1 year ago

    That looks like stress damage from extended use while under-inflated. Are you keeping them within the designed pressure rating of the tire? Do you check before every ride?

    • Nils@lemmy.oneOP
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      1 year ago

      They are rated 50psi max, but I had tried running them as low as 30psi for a cushy ride for a while. Wasn’t sure how low is too low. Maybe more of a problem because my inner rim width is only 19mm for these 50mm tires? Still within spec but on the narrow end for sure.