They just pop out.....slip a pointy little knife blade under the cap, don't forget to use a torque wrench to re tighten
And...........how are they going to lengthen it??
What would you do mate, would you cut the existing thread off the ram ball and weld a new bolt on??
Umm. OK. What's holding the ball to the bolt?And how do you torque down the new bolt onto the handlebars?
the bolt goes through the ball which is made out of the appropriate materials for strength, and you torque it down the same as you would any other bolt