top | item 45679207 (no title) buenzlikoder | 4 months ago Normal bicycle drivetrains have efficiencies around 95%... discuss order hn newest mark-r|4 months ago Haven't there been studies showing that a bicycle is the most efficient form of movement available?
mark-r|4 months ago Haven't there been studies showing that a bicycle is the most efficient form of movement available?
mark-r|4 months ago