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Shorten the crank or add shims?

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Shorten the crank or add shims?

Old 05-21-21, 05:21 AM
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gif4445
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Shorten the crank or add shims?

My right leg is around a cm shorter than my left. Not a big deal, unless you have some resulting problems. I've been suffering from what they diagnose as Piriformis Syndrome. Initially low grade, but the last bout has lasted 5 months. My fitter has told me that the leg length difference could have caused it and is advising I get a shorter crank on the short legged side. Other sources are telling me that using shims is the logical answer, as it is cheap and may not create some other problems like an uneven crank set might. Anyone have some experience with any of this?
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Old 05-21-21, 08:20 AM
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Iride01
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There are several good discussions of this in some threads several years ago. You might try to search for those. I added my 2˘ early in and I was woefully wrong. Can't remember who it was that added seemingly the most first hand experience about this or whether they are a regular here still.
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Old 05-21-21, 02:31 PM
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Yikes.

I lost 2cm off my right leg in '86 in a motorcycle accident.

Haven't had any issues due to the length discrepency... I have wondered if I should experiment with different length cranks but in uncountable thousands of km of riding I've never needed them.

I hope you get your issue sorted out - that can't be fun.
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