Youngsters Will Flip Out for this Little Cargo Bike! Yuba Bicycles, the leading maker of cargo bikes for adults, introduces the Flip Flop, the world's first kids' cargo bike and balance trainer. Designed for children ages 1 1/2 to 6, the Flip Flop teaches youngsters how to ride a bike without clumsy training wheels, allowing them to scoot along with their feet securely on the ground. The Flip Flop is unlike any other balance bike due to two unique features 1.It has a rack, like a big kid's bike. 2.Our patented ippable frame grows along with your child. Simply ip over the frame and op the position of the bars, rack, seat and front wheel to lengthen the Flip Flop adding an inch and extending its use for up to a year. It's flippin' incredible! Longest range of use of any balance bike 15 months to 6yrs old Adjust frame size more than any other balance bike Lowest Stand Over height = youngest starting age Light aluminum frame Includes Rack