I got back into bicycling two years ago after an absence of 8 yrs. When I started again I was 193 lbs and doing my "base" route of 22 mi. at about 14 mph. This route doesn't have any real long hills but a couple 1/4 mi. steep climbs and some gradual ups and downs. Anyway, by the end of last season (Oct around here in eastern CT) I managed a 16.6 mph on this route. Last week (now down to 180 lbs.) I managed to do the ride at 17.8 mph. Now I'm thinking that next year at age 62 I could be knocking on the door to 19 mph. So, all you new and/or older riders "crank on."