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MX | Off-Road Gear Info & Reviews
Primary Drive Aluminum Sprocket
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[QUOTE="Jaybird, post: 904103, member: 22283"] Exactly. Too hard is trouble. Without doing an ansys simulation and uploading it, you will simply have to trust that a resiliant, soft core will absorb shock load. A hard sprocket with no soft core has a harder time obsorbing shock loads, and is exactly whey they are more prone to shatter. To be as fair to Ironman as I can, they don;t have much meat on them to begin with. They are cut nearly to what depth a case hardened steel sprocket would have the teeth hardened to to begin with. The profile of the sprocket alone may provide some flex for absorbsion. But I'm biased against steel sprockets period. They only mask bad maintenance, imo. In fact, I see no gain from them whatsoever, accept for making it easy to get by with stretched out chains longer. And if a sprocket will last until your chain absolutely peels apart from age and lets loose while you are aboard....is it really a gain to begin with? Erik, It isn't normal for a quaity aluminum sprocket to show wear unless there is an alingment/adjustment problem, or the chain is stretched. I'm not familiar with the PD products, other than what I read on the boards. 7075-T6 aluminum is fine for sprocket use...I have no idea what PD's are made of. [/QUOTE]
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MX | Off-Road Gear Info & Reviews
Primary Drive Aluminum Sprocket
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