Zike Saber Hybrid Adult Stepper Exercise Bicycle Scooter Bike Pink Magenta Retail $599 Rugged aluminum chassis, Dual v-brakes 7-speed shifter, Double bracket chain system Ages 12+ 200-lb weight allowance Front and rear brakes, Size: 25 1/2-Inch W x 61-Inch L x 41-Inch H Before Ziking, please inflate your tires fully to 45 psi.