Why not? It's threaded BSA 68 so pretty much anything would fit. I've put the Dura Ace as you can see and the 7710 Octalink BB worked like a charm
I think the first batches about 6 years ago did not have the chainstay clearance & Omniums.
I personally added a 2mm spacer to clear a bit more.
I am sure you can ask Mielec to add crank spider clearance by doing a "dent" in the chainstay. (I don't know what the technical name is)
@SamuelBlackMetalRider started
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Why not? It's threaded BSA 68 so pretty much anything would fit. I've put the Dura Ace as you can see and the 7710 Octalink BB worked like a charm