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1

can I take my (front + rear) hubs apart while it is still attached to the spokes? Yes, of course you can. is it good enough to visually inspect the hub axle, and decide whether it's safe to use based on that? Well, there's not much else you can do, so yeah, I'd call it good enough. If there's any doubt, I'd just replace the axles. any other ...


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Those scratches are due to the chain rubbing as it shifts between chainrings. They are more noticeable on your bike than most because you have black chain rings. A Park chain wear gauge is a good way to tell if your chain is worn. Alternatively, you can measure with a ruler as described, but it's much easier if you remove it from the bike. The figure I ...


2

That is a picture of the chain ring not the cassette. If the cassette is worn out then the chain is worn out. Cannot tell anything about the larger chain ring but the small chain ring is not in bad shape. This is the order they wear out: chain, cassette, then chain ring. You get 2-3 chain per cassette. And typically 2 cassette per chain ring. If ...


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Use a chain wear gauge to see if the chain needs replacement (e.g. Park Tool CC-3.2).Generally, these err on the side of replacing a bit early, but if you want to be pedantic about it, you can use the Sheldon Brown link below to measure with a ruler. As for the sprockets or chainrings, I'll defer to this page by Sheldon Brown. The upshot is that worn teeth ...


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There's an additional issue that wasn't mentioned that worries horse riders. Occasionally cyclists think it is "neat" when riding two-abreast to pass on BOTH sides of an obstacle, one cyclist going to one side, one to the other. With horses this is a dreadful idea. The horse can deal with "terror to the left" by shying to the right, or vice-versa. But ...



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