Those old Raleigh pedals with the pointy ends
Like this:
Image: http://www.oldbike.eu/museum/wp-content/uploads/2016/01/1934-Raleigh-X-Frame-U54463-32.jpg
How is one supposed to ride those? Are there really people with narrow enough feet to fit between the points? Or are you supposed to ride with the arch of your foot on the pedal? I know...

