Grown up bike technology and quality dialed for big kids looking to attack the trailsthis a1 premium aluminium frame with 24quot wheels is built like an adult xc bike with double butted tubing forged dropouts and disc brake mountsspecialized fast trak sport knobby tyres give kids a confident start to trail ridinggt junior triple crankset with replaceable outer ring plus shimano 7 speed 14 34t mega range freewheel for versatility and quick smooth shiftsgt sram x3 7 speed rear derailleur an