A bicycle fork is the part of a bicycle that holds the front wheel.A fork typically consists of two blades which are joined at the top by a fork crown. Above the crown, a steerer tube attaches the fork to the bicycle and the handlebars (via a stem) allowing the user to steer the bicycle. The steerer tube of the fork interfaces with the frame via bearings called a headset mounted in the head tube.At the bottom of the fork, dropouts hold the wheel.