Trail-A-Bike Jr. Compact Folder (Silver) Compact "Trail-A-Bike" tandem riding system with folding frame--accommodates riders with a 2-inch shorter inseam than larger model Shorter reach, shorter cranks, smaller chain ring and a narrower handlebar for smaller riders Lower center of gravity gives parents and children increased stability Attaches easily to the seat post of most adult bikes so parents and child can share pedaling For ages 3 to 5 years old; 85 pound load capacity; lifetime warranty