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MX | Off-Road Gear Info & Reviews
New rear sprocket???
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[QUOTE="motometal, post: 760000, member: 24727"] great post, Jaybird. Seems like a while back I did a metallurgical analysis on some chain components, I should have documented. I do remember that the rollers were relatively hard-probably approaching 50 RC or better. My point is that they aren't going to mush around and deform very easilly. I have seen them crack and fall off, though. The suggestion that the chain stops stretching because of work hardening action is an interesting idea, but not likely. Steels with an austenitic microstructure do work harden somewhat (304 SS would be an example, AR 400 would be a better one), but your chain is definitely not made of such a material. Your chain is made of a material with a martensitic structure, which is harder and stronger than 304 SS would ever be. The shear forces on the interface area of a composite sprocket would be greater towards the axle, not towards the teeth, due to the mechanical advantage/leverage. Has anyone weighed/compared the composite type to a steel or an aluminum sprocket? I'm curious. [/QUOTE]
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MX | Off-Road Gear Info & Reviews
New rear sprocket???
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