Bicycles of a useable sort are dependant on ball bearings. Which aren’t very visible. So even if you went back in time anf knew what a bicycle looks like, you would be able the build a good bike without a lot of background engineering knowledge.
Bicycles of a useable sort are dependant on ball bearings. Which aren’t very visible. So even if you went back in time anf knew what a bicycle looks like, you would be able the build a good bike without a lot of background engineering knowledge.