youll have to figure out exactly which by BB shell your specialized comes with - unfortunately, they are another one of the companies that likes to fuck everything up by making a "new" standard just for the hell of it - in the main that's do they can sell you a replacement sworks crankset for around $900
Yep, have a praxis on my roadie and its great. Quiet, replaced the loud effer that I originally had installed. 46x73 should be pf30, so you're on the right track there
I clicked through to there via the importer, Dawson Sports Group. So your LBS should be able to sell you the same part for a similar amount.
Enduro/wheels MFG make another, from DIYMTB. Similar price, but doesn't have the expanding internal shell to snug up against your frame. Relies on O rings and good frame manufacturing tolerances.
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