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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Do Fork/Shock springs ever wear out??
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[QUOTE="Robcolo, post: 708949, member: 28062"] TooTech is correct in overall analysis but is confusing us with his use of terms. Stress is the force applied to the steel, but strain is the term used to define the steel's reaction [deformation] to that force. Spring flex and spring rate is dependent upon this very small deformation [strain] of the spring wire -that is one side of the wire is compressed [it gets wider] and the other side is tensed [it gets narrower]. If the elastic limit of that particular material is exceeded -if it is deformed or strained past a certain point it, then it never returns to its original dimensions. An extremely small deformation in wire dimension affects a very large change in actual spring length. You can take a "sacked" spring, and stretch it back to it's original overall length simply by overextending it. [I hook one end to the table of my Bridgeport mill, the other end to a large bench vise , stand back and crank away. "stretch" it a bit more each time, then measure, and you'll soon have it back to it's original length. I've never had one break [yet] and get numerous seasons from the same set. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Do Fork/Shock springs ever wear out??
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