Senior Member
Join Date: Oct 2016
Location: Cambridge UK
Posts: 852
Bikes: 1903 24 spd Sunbeam, 1927 Humber, 3 1930 Raleighs, 2 1940s Sunbeams, 2 1940s Raleighs, Rudge, 1950s Robin Hood, 1958 Claud Butler, 2 1973 Colnago Supers, Eddie Merckx, 2 1980 Holdsworth, EG Bates funny TT bike, another 6 or so 1990s bikes
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 331 Post(s)
Seat post stuck damage
For what it's worth.If your seat post is stuck big-time and you secure the post in a vice and use the frame as an extension for leverage this is what can happen. If you aren't paying attention the gorilla thinks the stuck post is moving so it twist it the other way to get some continuity and presto! - you have a collapsed seat tube with no scratch marks and opposing depressions as a result of the twist one way and then the other way.