Title: How Long SHOULD this last?
Review: I ride a mountain bike two miles each day on paved roads. I got these tubes at the bike shop for $4.50 each. They told me "We put these in all of our bikes." OK, so they last me about four months. Is that an adequate service life? You distance riders would know better than I, but considering the easy treatment I give them, I feel they should last longer. Thank you.
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