Gear knob for custom bicycles

thingiverse

I built this for my bicycle project just to see how it works. It's a lot easier to print each separate part before assembling them. This applies specifically to the Shimano Nexus 3 shifter. I printed these parts with 50% infill, but maybe 75% or even 100% would be more suitable. When attaching these parts, use standard bolts for fastening. If you have tools that can create threads, it's an added bonus.