Tubo interno bicicletta Schrader Presta valvola tubo interno bici strada tubi pneumatici camera

(AV for Schrader / FV for Presta). After loading, it can be used normally under the wrapping of the outer tube, which is not a quality issue. Before installation, clean the inner side of the outer tire to avoid any residual sand or sharp objects piercing the inner tire.

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