Joined: Oct 2008
Posts: 1,614
Likes: 176
From: Frankfurt, Germany
Bikes: Focus trash find commuter, Eddy Merckx Corsa, BP Stealth TT bike, Leader 720 TT bike, Boardman Comp Hybrid drop bar conversion, Quantec CX budget cyclocross build, SerottaNOS frameset ready to build up!
Possibly a silly question but....
Is the size stamped on the bottom of the post?
Have you got a seatpost of known size (27.2mm) that you can test in the seat tube...?