Complete bike newbie here. I bought a cheap used mountain bike from an independent bike shop. I've had no issues with it apart from the back tire, which went flat shortly after I bought it. The outer tire completely covered in both large and small cracks. I took it back to the bike shop I bought it from and they changed the inner tube of the back tire, so it is now intact, but the outer tire is still very damaged. Is it worth me replacing the outer tire?

    by MuffinChemical3627

    30 Comments

    1. Working-Promotion728 on

      It’s just a tire — no need to specify “outer.” That tire is way past due for replacement.

    2. That is a terrible condition for a tyre. Must be very old and beyond it’s service life. Dangerous to ride, replace.

    3. Sure, and unless this rides 90% on dirt, you’ll probably enjoy something with a bit less knob on it.

      Maxxis Pace or various Schwalbe tires (Marathons, Billy Bonkers, Big Bens) are popular 26″ choices.

    4. I’ve ridden worse and older without killing myself, but I’d probably replace unless you’re just following kids around the neighborhood at slow speeds.

    5. Yup. Definitely. Think about it like this: the only thing that keeps you in touch with the ground, thus in control, are the tires. So…

    6. I would.

      It’s old enough that the rubber has aged, meaning it’s brittle. Both in the sense it’s prone to punctures, and at this stage, literally pieces of rubber falling off.

      In addition, it’s essentially got a mud-oriented tread pattern that used to be common in mountain bikes and mountain bike -looking bikes, making for a lot of rolling resistance. Even if you intend to use this bike for mountain biking, it’s very likely you’ll be happier with better rolling ones.

    7. Looks fresh keep riding until you can see all the stiching underneath then you know you’ve got your moneys worth out the tyre

    8. The rubber is dry and it’s cracking all over. It’s dead. Tire size 50-559 (26”) should be easy to find. In Finland i can find those for 10-13€ at the lowest price.

    9. Lopsided_Evening_627 on

      Unpopular opinion.
      If you don’t want to spend the money you can probably ride it a few thousand km more…
      Pump it well so it doesn’t flex too much.
      Or change it. It’s already lived it’s life.
      If it blows out you risk destroying the inner tube (and maybe you fuck up your ring)

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