Originally Posted by MichaelW
Std ones have a single vertical bolt.
A modern alternative is a 2-bolt design: The 2 bolts are forward and aft of the post and allow fine-tuning of the tilt. This is my favourite type.
Do all seatposts come with both 1- and 2-bolt designs, or are they each only available on specific seatposts? (I recently realized that the tilt on my saddle was too far forward, and I was getting really sore wrists from riding.)