Unmounted crank resting on my hand. It is smaller than the width of my palm (including my thumb).
https://cdn.masto.host/velocipederidercom/media_attachments/files/112/658/785/726/320/502/original/b1bfa505ee4273b4.jpg
I'm just trying out my little baby cranks again after a couple of years. These things are only 75mm long. On my penny farthing I use 150mm cranks. Normal bike cranks are usually in the 165-170mm range.
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