You are reading a single comment by @rive_gauche and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@rive_gauche
if the bolt hole is at the back then yes the seat bolt end tries to bury itself into the seatpost. i've yet to see an arrangement that pressed a wedge/shim/widget against the post.
if it's a traditional clamp, the two narrow faces are drawn towards each other and try to pinch the rear trailing edge of the seatpost.
basically columbus air seat post clamping arrangements are poo-poo!