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  1. Keep_on_Dreaming_ on

    Rode my dads old bike a bunch this summer and now the chain is slipping on both smaller chainrings under high load. I exchanged the chain once this summer and my dad says he did barely any mileage on it.

  2. If pops didn’t ride the bike, it could be that the cogs were worn when you replaced the chain and now the new chain is skipping on them. Measure both for wear with the corresponding measuring tools.

  3. Puzzled_Bath_984 on

    They’re definitely worn. If you want the next one to not wear, you need to keep the chain a hell of a lot cleaner than this.

  4. They do look really worn, especially the middle one. Looks like you are not big on cleaning your chain, might want to start looking into that.

  5. Your drive train is covered in sludge – an occasional cleaning is the best way to make parts last a long time.

    No chainring should wear out in less than 10,000 miles (most make it way further). However with this dirt that bike is the the level of wear is unsurprising.

    The chain is probably also fucked so if you replace the chainring but not the chain the worn chain will damage the cassette and new chainring pretty quickly as well.

  6. The middle chainring looks more pointy than the other one and it could be toast. If it is, then you most likely need to replace everything (chain, cassette, chainrings), as usually the chainring goes last. Once the chainrings are gone you can drive the drivetrain to the ground as you must replace it anyways.

    To get the most out of your components you should consider cleaning your drivetrain regularly.

    There are a ton of good tutorials out there.

  7. Dirt and grit will collect in the grease and wear these parts down quickly if you don’t clean them, which you evidently don’t. It might seem like ‘cyclists’ are obsessed with cleaning their bikes, but I promise it’s not for cosmetic reasons. It has a very significant impact on the performance and longevity of the components.

  8. RibEyeSequential on

    Chain ring is done. If you replace that, get a new chain too. Usually cassettes go before the chain ring. From the photo that looks good but consider getting it all changed.

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