Anyone know what they are called?

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Anyone know what they are called?
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Posted: Oct 19, 2019 at 7:13 Quote
I know you all seen the videos where the chainring keeps moving but the crank arms dont. I was wondering if anyone knows what they are called?

Posted: Oct 19, 2019 at 11:58 Quote
Front free wheel coaster, or bikes with gearboxes have that, and some ebikes do as well.

Shimano in the late 70's and early 80's had the front free wheel coaster. Only benefit is shifting while coasting. Downside is chain is always moving.
There have been newer versions of this recently.

Posted: Oct 19, 2019 at 12:46 Quote
https://www.pinkbike.com/news/review-hxr-easy-shift-crankset.html

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