The Stereo 120 is deservedly one of our most popular mountain bikes. It's comfortable, versatile and great fun. For the pint-sized Stereo 120 Rookie we took all these traits and packaged them in a kid-friendly size for your junior trail explorer. The easily adjustable Suntour air suspension adds both comfort and control. Shimano's wide-ranging 1x12 gears are both simple to use and legendarily reliable. And we fitted Magura's powerful hydraulic MT Thirty disc brakes because, well, you can't put a price on safety. It all adds up to family smiles for miles.