after a normal use of the bike (with normal and regular bails as we can see on that
video when the peg hits on the ground again and again), the cap will settle in the peg and litterally these two parts will make one piece : the thread of the cap will slide gradually on the thread of the peg and it will be impossible to unscrew the cap from the peg with your allen key. Probably because that's a soft 6061 T6 aluminium body..
Then, the three solutions for that unavoidable problem for a real user of a flatland bike (who is not sponsored and able to change often his pegs) are :
. drill perpendicularly the body of the peg in order to put an iron bar (or something similar) on it to get a lever,
. or you drill the cap in order to fit directly a socket inside the peg (then you get a big hole and no more rounded cap),
. or you cut the peg at the end in order to fit directly a socket inside the peg (then you get a big hole, short pegs and no more rounded caps).
[/quote]Like in every case when you have a thread you should use some grease bevore tigthening it... I rode my AbT Pegs for two years and still have them here. They have other problems - yes - but you dont have to cut them of if you installed them properly!