Post #3651563

@fullywoolly@mastodon.social @log@mastodon.sdf.org @ellie@social.lol original figure is from "Bicycle Technology" by S.S. Wilson which reviews the technological marvel that is the bicycle, including also cross-sections of a Sturmey-Archer Hub. It's quite good reading for any #Cycling enthusiast. https://notfine.com/bikes/articles/Scientific_American-Mar1973-Bicycle_Science.pdf #BikeTooter