The AmTryke ProSeries 1616 3-Speed Therapeutic Tricycle is suitable for high functioning riders who simply need help with balance and a stable sitting position. Riders must have the cognitive ability to steer and apply the coaster brake and/or hand brake. They must also be able to make a complete pedal rotation on their own. The 1620 is designed on 16 inch wheels with pneumatic tires, giving a rider the freedom to tackle a fairly level bike trail with small terrain changes and ride for extended periods with family and friends. The key feature to this 3-speed tryke is the ability to coast. This contrasts with the 1416 model fixed drive models that force full range of motion through the fixed drive function and do not allow coasting. Rear steer is not available on the 1616. Available in AmTryke red. Assembly required. Since this is a foot tryke, make sure the rider’s leg length fits within the range. Arm length – center of shoulder to center of digit crease 14-22 inches. Leg length – center of hip to bottom of foot with shoe- 24-32 inches. Rider weight up to 175lbs. Rider max height 60 inches. Tryke weight 74 lbs. Helmet included: XXS- 18.5 to 19.5 inches; XS- 20 to 21 inches; S/M- 21.5 to 22.5 inches; L/XL- 22.75 to 24.5 inches.