The unionstreetbikes.com says this about head angle:
Why is the head-tube so steep?
Again it is to allow the frame to be more responsive and nimble and allows you to better weight the front end, at 71.75 degrees under full compression the head-angle will change to approximately 74 degrees still less than the average park/dirt BMX bike.
Why is the head-tube so steep?
Again it is to allow the frame to be more responsive and nimble and allows you to better weight the front end, at 71.75 degrees under full compression the head-angle will change to approximately 74 degrees still less than the average park/dirt BMX bike.