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Someone was asking on the procedures on removing the Brompton seatpost bung (Pre-2018 version) earlier in the day. Its really a 3 simple steps procedure. Unscrew, pop and release!
The following explains:
![](http://www.petrelli.cc/wp-content/uploads/2018/06/Removing_the_Brompton_seatpost_bung_002-1024x683.jpg)
Unscrew the bolt from the center of the bung
![](http://www.petrelli.cc/wp-content/uploads/2018/06/Removing_the_Brompton_seatpost_bung_003-1024x683.jpg)
After the screw had been unscrewed, lightly tag the bolt in with the necessary tool.
![](http://www.petrelli.cc/wp-content/uploads/2018/06/Removing_the_Brompton_seatpost_bung_004-1024x683.jpg)
Once the bolt had been tapped in, the “expanded” had been pushed in and the bung should be able to be removed with easy.