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If it is PF30...which it probably is in that era, then you need one of these or similar.
There shouldn't be any threads involved, and it should be the 30mm spindle, so no DUB nonsense.
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I'm pretty sure the 2017 supersix if PF30a. I recently upgraded my 2014 which is PF30 (not PF30a) with a wheels mfg BB and it's great. Check the BB finder here to be sure https://wheelsmfg.com/bbfinder super easy install which is nice.
I need to replace the Bottom Bracket on a 2017 Super Six Evo Disc. Apparently I need a PF30 bb? I googled that but everything looks very different. Some seem to be Pf pressfit some have threads. I am confused. Can somebody enlighten me?