Bowflex Selecttech 552 Series 2 Discs 2, 3, 4 and 5

thingiverse

I accidentally shattered three discs on my Bowflex Selecttech 552 Series 2 (White Numbers) dumbbell. I saw how pricey replacements for these discs are, so I decided to make my own. I printed these discs with PLA, but I'm confident they'd be even more resilient with ABS. I don't have ABS, yet since printing the disc with PLA, it's working great for me and hasn't broken after extensive use. Be extremely cautious when disassembling the dumbbell. There are numerous washers, springs, and ball bearings inside which you'll lose if you're not careful. When taking the dumbbell off the base and putting it back on, ensure the dumbbell is set to 5 on both sides. Press down the small button on each side of the dumbbell to manually move the selector when the dumbbell is off the base, in order to move the dumbbell back to 5 before placing it back on the base and into position.