Joined: Jun 2009
Posts: 2,242
Likes: 1,660
From: PacNW
Bikes: Dinucci Allez 2.0, Richard Sachs, Alex Singer, Serotta, Masi GC, Raleigh Pro Mk.1, Hetchins, etc
sorry this looks like a clear case of Suntour derangement syndropme. Do not ride that seatpost.
the cone or wedge seatpost does eliminate the need for an external pinch bolt. BUT
don't use it in a frame that does not have an internal collar in the seat tube.
Else you risk bulging the seat tube.
/markp