The Airline pack able bicycle built for three or two! Choose from the affordable pre built Family Triple Tandem to triple the family fun, or for when one of you opts out convert the bike to a 2 rider Family Tandem Traveler. Upgrade to a custom XL Triple Traveler for more gears, more options and lighter weight. Designed for 2 adults + 1 child, or 1 adult + 2 children.