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TM
Anyone got any advice regarding the removal of a stuck Brompton stem? Trying to remove the stem so I can stick my disc fork on there. Have followed the Brompton doc that says undo the lock nut 1 turn and then the expander bolt 4 turns and give it the Allen key a whack, but it's not shifting at all. Indeed I've now given it several whacks and nothing... I was hoping to get this sorted so I could commute on Monday. Soak it in penetrating oil and leave it a while?