I'm about to replace my Truativ Blaze cranks (ISIS BB) with a Race Face set with external bearings and Race Face say to be sure that the BB shell has been face milled to ensure that the faces are parallel. Does anybody know if this is done on all the prophet frames including the models that are delivered with an internal bearing bottom bracket? And if not, is it really necessary to get the BB shell milled? Thanks!
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Thread: Prophet BB shell face milled?