fly reel gen 2

bearing needed is https://www.mcmaster.com/6656K243/

i used carbon fiber arrow shafts as the spacers(they measure 6.1mm in diameter), works well, uses magnets as a braking system

threads are m5 on the outer hub, the bolts need to be at least 10mm long

threads are m6 on the inner hub, shoulder bolt is what i recommend, here is what i used https://www.mcmaster.com/94361A534/

magnets i used https://www.mcmaster.com/5862K166/

good luck!