Originally Posted by
Rolla
How is the insert held in place? If it’s removable it can be replaced with a tighter fitting one.
I am not a frame builder but I assume that these are pressed in place and then honed/reamed to the proper fit.
Originally Posted by
Rolla
But more importantly, how loose is the seatpost in the insert? As long as the seat tube clamp holds it in place, it doesn’t have to be super tight when putting it in or taking it out.
The nominal seatpost diameter is 31.6mm. The hole diameter is .020" (0.5mm) oversize.
Originally Posted by
Rolla
I have bikes with varying degrees of seatpost tolerance; none affect the stability of the post once installed.
I am mostly concerned with possible fatigue on the seat tube over time causing frame damage.