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@tynan
Good point !
The Sugino 75 BB has a retainer cage, so it kind of forces you to use a certain amount of bearings - but if you want to save a tiny amount of weight and decrease friction simply pop the bearings out of the retaining cage and chuck it in the bin.
The cage is only there to help assembly at the factory, but if you fill your cup with grease before assembly it is very easy to stick the bearings into the cup one by one and the grease holds them in place very nicely.
The whole point of a loose bearing BB is that it runs so freely, so chuck that cage in the bin !