Originally Posted by
biker128pedal
How about get someone to 3D print a cylinder with a smaller diameter section at one end that will have an interference fit inside the bar. Wrap some bare tape to secure. The 3D print could be low density/porous to keep weight down. You could even put an inward curve on them as you show. Wish I had a 3D printer.
i had thought about that but 3D printed stuff is probably too brittle/not strong enough. Heck, I’ve broken aluminum bar extensions before!
3D printing can work nice for prototypes however. I’ve done several for work.