From my experience using heat rather than cooling has been more successful, although if all else fails I think this method is better than dissolving alu posts with caustic soda:
Have to agree, my pink frame I got the post out with soda but then residue in the frame killed a gxp bottom bracket at a later date as rain/damp must have got in and old soda pooled in the bottom bracket.
From my experience using heat rather than cooling has been more successful, although if all else fails I think this method is better than dissolving alu posts with caustic soda:
https://youtu.be/LJLZ9Ojtr80