Mongoose Bicycles Mongoose is a youthful, aggressive, cool brand that appeals to young Gravity and X-Games enthusiasts, typically males ages seven to 17. Founded in 1974 in Southern California, Mongoose has consistently been known for innovation with such products as magnesium MotoMag wheels and Front Porch head tubes. The product line has traditionally focused on the BMX and freestyle categories ranging from full-suspension mountain bikes and lightweight road racers, all targeted to a young customer base. Like Schwinn, the Mongoose brand has proven powerful in driving sales, particularly in the mass channel. The brand was first introduced to the mass channel in 1998 with quality perception remaining constant.