Cogset: yet another phrase with the list of rear sprockets that attaches into the hub within the rear wheel and ordinarily either a freewheel or cassette Fork: the part that attaches a bicycle’s frame to its front wheel and handlebars in addition to permits steering due to rotating steerer tube https://pitbikeengines70486.thenerdsblog.com/40832258/bike-engines-copyright-no-further-a-mystery