rec.bicycles.tech - join
Cycling product design, construction, maintenance, etc.
High activity, 2658 subscribers, Usenet

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

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

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

aus.bushwalking - join
Bushwalking, hiking, and other outdoor activities.
Low activity, 321 subscribers, Usenet

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

melb.general - join
General discussion, announcements etc.
Low activity, 113 subscribers, Usenet

aus.gardens - join
Gardens and gardening in Australia.
Medium activity, 127 subscribers, Usenet

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

alt.firefighters - join
Low activity, 138 subscribers, Usenet