Unsticking seatposts.
HI. Yes, removing stuck seat-posts can be so difficult. Even cranks that have been seized to (last one I had to remove required me damaging the chain-rings, and using a harmonic balancer pulley remover and it was STILL difficult). On YouTube, there's "RJ bicycle guy" or similar that has a very good channel with lots of practical demonstrations of repairs and problem solving.
The image of the tandem shows "Grab On" grips or similar. These were stock, so this bike has been kept up beautifully or has been lovingly kept indoors.
Last edited by Nu2Miele; 08-16-19 at 03:25 PM.
Reason: added comment