I swear that girl just loves biking! We've been going twice a day since we got it Monday, and she knows already when it's time to go. We go right before breakfast, and a little after supper. Only about a mile or so each time. I thought she was getting used to it and was going to pace herself, but, NOT! Sometimes she runs just as fast as she can, and I have troubles keeping up, so, I just let her pull me, she don't seem to care a bit