I ride 4 days a week and 11-12 miles per ride. I have two routes both of which are cat 2 out and back climbs. Occasionally I'll do both which is about 22 miles and 2300' of climbing. So I end up with about 20,000' vert. per month. The rides aren't long but the climbing is plenty to keep me in fit which is all I'm after since I have no desire to spend endless hours riding.