Originally Posted by Duragrouch

I may have seen the identical wheelset the other day, tempting price, and I need new rims. But would be best to upgrade to discs.

Question, if you know? I see in set online now, options for 74 or 100mm front, 130 or 135 rear, 406 or 451, that I all understand. But I'm also seeing options for "2 bearing" or "4 bearing", the latter is higher cost; Do you know what that is?

I've seen some rear hubs that don't have a bolted-on freehub, but instead, cartridge bearings at both hub flanges, then two cartridge bearings for the freehub body, which is then held to the hub by quick-release force, and the ratchet is visible when freehub body removed from axle; Is that it? That's my guess but it would not apply to the front hub, my guess.

I would like a serviceable freehub body, but a bolted-on freehub is stronger I think for vertical loads, the axle loaded more in shear closer to the dropout, less bending moment.