# Crank length and knee angles

**URL:** <https://community.escapecollective.com/t/crank-length-and-knee-angles/4465>\
**Category:** Performance\
**Created:** [October 5, 2025, 2:00pm UTC](https://community.escapecollective.com/t/crank-length-and-knee-angles/4465 "2025-10-05T14:00:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ethan\_Cohane-Mann](https://community.escapecollective.com/user_avatar/community.escapecollective.com/ethan_cohane-mann/32/5798_2.png) [@Ethan\_Cohane-Mann](https://community.escapecollective.com/u/Ethan_Cohane-Mann)\
**Post date:** [October 5, 2025, 2:00pm UTC](https://community.escapecollective.com/t/crank-length-and-knee-angles/4465/1 "2025-10-05T14:00:16Z")

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Listened to the new performance podcast and was trying to remember what knee angles to look for generally. There were three ranges of them “most probably will cause knee pain”, “might cause pain” , and “probably won’t cause pain”. What were they?

Also I think I remember it was 20 percent of inseam or more accurately 41 percent of tibia length for a ballpark crank length? Is that right?

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**Author:** ![David\_Tuttle](https://community.escapecollective.com/user_avatar/community.escapecollective.com/david_tuttle/32/4397_2.png) [@David\_Tuttle](https://community.escapecollective.com/u/David_Tuttle)\
**Post date:** [October 5, 2025, 2:55pm UTC](https://community.escapecollective.com/t/crank-length-and-knee-angles/4465/2 "2025-10-05T14:55:16Z")

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Appleman website has the information.

> **[Resources - Appleman Bicycles](https://www.applemanbicycles.com/resources/)**
>
> Resources A Rider’s Guide to Crank Length Crank length is confusing—and important. Am I riding the right length crank? How do I choose a crank length? This guide provides direction to life’s biggest crank length questions. read all about it ↗...