Assembly This trike comes unassembled. Assembly manual below HKS« amp Upgrade Features Navigator Mechanism Simple OnOff switch to activate Navigator Mechanism. No cables needed. Tipping Rear Bucket Full size, spacious bucket sturdy enough to haul anything from heavy sand to your family of plush animals. Parental Control Steering Lock System Locks handlebars into place for parental guidance and steering with optional pushbar. Auto Freewheel Exclusive integrated automatic free wheeling allows children to rest their feet on the pedals while parents guide them with the included pushbar. Lifetime Frame Warranty Put your mind at ease, feeling confident that your purchase is backed by Kettler's HKS« Lifetime Frame Warranty against manufacturer's defects. Standard Features Quick Adjust Frame Telescoping multiple frame adjustment with patented Quik Adjust knob 5 frame adjustments for a total of 2.5. Limited Turn Radius Device Internal mechanism restricts handlebars and front wheel from turning more than 45 degrees left or right, radically reducing the danger of tipping over. Seat Adjustments Four seat adjustments for a total of 2 inches. Safety Trax Wheel Long lasting dual layer safety tread wheel pattern. Free Push Bar 3 Position Adjustable Straight Pushbar included. Easily removed with a push of a button. Free Seat Belt Now comes with a 3 Point Seat Belt FREE Kettler Red Metal Bell For a Limited Time Tandem Adaptable Accepts optional Tandem Insert for adding up to 3 more seats. Unavailable Features Handbrake not available due to the Rear Wheel Steering navigation Ages 1 5 years Weight Limit 150 lbs. Dimensions 30 x 21 x 21 Wheel Size 9.55 Seat Distance to Floor Approx. 11 Seat Distance to Petal 17.5 21.5 Frame Adjusts from 29.5L 32L Pushbar 42 inches Product Weight 20 lbs Note When measuring child sit them on the floor with knee slightly bent. Measure from hip to heel.