Head tube
![A bicycle head tube with a partially installed bicycle headset; the locknut has yet to be fitted onto the fork steer tube.](/Images/godic/202501/17/Frame_met_balhoofd5543.JPG")
The head tube is the part of a tubular cycle's frame that the front fork steer tube is mounted within. On a motorcycle, the "head tube" is normally called the steering head. On bicycles the manufacturer's brand located on the head tube is known as a head badge.