Last two weekends, took my 11-year old along with me on my usual jaunt through Westchester. She tagged along for 42 miles the first weekend and 48.5 miles this Saturday. We averaged 13mph the first ride and 14 on the second one. I hope to get her to 50 miles @ 15.5mph by the end of summer, and then get her onto her own road bike next season. Want her to get comfy riding on the road.