Mongoose Bikes - For 50 years Mongoose has been a globally recognized brand built on two-wheeled innovation from BMX to mountain bikes – all with the mission to fuel the wild-side in riders everywhere to push their limits, have a blast, and get dirty doing it.ongoose An American bicycle manufacturer that produces a range of bicycles, including BMX, mountain, and urban bikes. Known for its commitment to innovation, such as its use of hydraulic brakes on BMX bikes and its partnership with the USA BMX Foundation to support BMX racing.