Seatpost won't let me set my saddle "level" I recently changed my saddle and I've found I'm unable to get my new saddle level (as measured with spirit level). 

The problem is the seatpost clamp - it has teeth on both the concave top of the shaft and the convex clamp part that fit together to prevent the saddle angle from changing. These teeth are quite large and they restrict the possible angles the saddle can be set at. 

My previous saddle just happened to have an inherent angle that matched the seatpost, so I was able to set it "level" with the ground. I find with my new saddle, it is either slightly tipped forward or slightly tipped back. Neither are satisfactory - I need something in between.

Does anyone have a suggestion for fixing this (short of buying a new seatpost)?
Unfortunately, this is a common issue with more basic seat posts. 

There are 2 options:


Use sandpaper or a Dremel to remove the teeth which fix the angles of the seat post. If you make it completely smooth, then you can use grip tape like that designed for a skateboard deck to add friction without locking you in to specific angles. This approach has drawbacks. The grip tape may need to be replaced on occasion. You need to be careful not to remove too much material from the post, as it risks breaking the post in use. As you can imagine, that would be painful. 
Replace the seat post with something without that limitation. 


I hope that helps.