My 5 year old son and myself rode 23 miles in a fun ride this afternoon. I had planned on going 35 miles until the rolling hills and the strong NE headwing convinced me otherwise. That's the furthest we've gone with this setup. We're used to riding an 18 mile fairly flat loop. We were the only father/son team out there with about 100 other riders. He's still talking about the good time he had. I know he'll remember times like these forever.