rec.bicycles.misc - join
General discussion of bicycling.
Low activity, 1875 subscribers, Usenet

rec.bicycles.marketplace - join
Buying, selling & reviewing items for cycling.
Low activity, 1151 subscribers, Usenet

alt.mountain-bike - join
Use rec.bicycles.off-road instead.
Low activity, 614 subscribers, Usenet

alt.rec.bicycles.recumbent - join
Low activity, 343 subscribers, Usenet

aus.bicycle - join
Pushbikes.
Low activity, 484 subscribers, Usenet

rec.bicycles.racing - join
Bicycle racing techniques, rules and results.
Low activity, 1470 subscribers, Usenet

rec.bicycles.rides - join
Discussions of tours and training or commuting routes.
Low activity, 567 subscribers, Usenet

rec.bicycles.soc - join
Societal issues of bicycling.
Low activity, 258 subscribers, Usenet

ba.bicycles - join
Bicycling in and around the Bay Area.
Low activity, 217 subscribers, Usenet