If you're looking for the best way to tour Central Park, look no further.
Our guide had bikes the right size for all ages of our group, helped us adjust them all, and even brought a trailer for a member of our group that was too young to ride. I couldn't believe how patient he was with all of us, there were ten!
Be warned--if you do the FULL tour, it's about six miles and not for people looking for a short, easy ride. We did the full tour and loved every bit of it, our guide stopped as often as we wanted and encouraged us to take pictures. We didn't feel one bit like he was condescending or impatient with us. He happily answered questions he probably gets all the time, and even with some enthusiasm. He shared some cool experiences he's had in Central Park as well.
I just can't say enough good things about this tour. It was absolutely perfect. I would advise that if you're going in the summer, you do so early. The park not only gets busy, it gets hot.