Definitions for "Seat Post"
Keywords:  saddle, we'll, guts, bicycle, tube
The tube which holds the seat and goes into the frame.
The Seat Post is the tube that supports the Seat and sleeves into the Seat Tube. Some Seat Posts have a clamp built-in to clamp the seat rails while others use separate Seat Guts.
Post that the seat is attached to, to be inserted into the seat tube.