A lightweight low standover frame with child proportioned easy to use controls make the hotrock 20 perfect for a first multi speed bike a 50mm travel suspension fork takes some bite out of the bumpsgt a1 premium aluminium frame for 20quot wheels with low standover height plus 40mm travel fork with preload adjust for all terrain fungt specialized roller tyres provide a knobby grip for dirt but roll easily on pavementgt shimano revo 6 speed twist shifters allow easy safe gear chang