I think my sprocket is getting a bit worn and need to be changed, but I’m looking for a second opinion. It doesn’t have the «shark fins» I’ve been reading about, but the sprocket fins look a bit thin and worn.

Would appreciate someone’s opinion it.

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[–] 21 points 5 months ago

They're definitely worn, you can see the valleys are getting elongated and the peaks are getting thinner. I always found it helpful to find a picture of a brand new sprocket to compare with.

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  • [–] 13 points 5 months ago* (3 children)

    If you can, it’s best to replace both front and rear sprockets and chain together.

    Also, give your wheel a good inspection. It looks like cracks have formed near the visible bolts:

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  • [–] 7 points 5 months ago (1 child)

    That trucker is definitely toast. Time for replacement.

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  • [–] [S] 5 points 5 months ago

    Thank you! I guess I’ll change it asap then.

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  • [–] 2 points 5 months ago

    Way over due. Change both sprockets and chain.

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  • [–] 2 points 5 months ago

    That's done for. Time to change both gears nd the chain.

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  • [–] 1 point 5 months ago

    Is the chain anywhere near needing replacing (any stiff links)? Usually you wouldn't change the sprocket until the chain needs to be replaced.

    I think I have read in the past that you should always do them both because as the chain stretches the sprocket tends to wear to match the stretch, but I have reused sprockets without any problems.

    Anyways it looks fine to me.

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