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I’ve got a hard one here for the real nerds. I bought a specialized Allez sprint disc frame and in the bottom bracket there are already bearings pressed in. (Pic) Is this just a pre-installed bottom bracket or what? If so, what cranks am I supposed to use with it? I was gonna take it to the LBS to put a 105 group on it but from what I’ve read that will involve installing a different BB if I want to use the 105 cranks. I don’t know if I should just do that or get a crank for the existing bb (if that’s what it is). Thanks.
