Originally Posted by
beech333
I had a shop mechanic tell me a few months ago that the high end, modern stuff had gone back to loose bearings. I'm not interested in modern stuff, so I never looked up anything about it, but is that not true?
For hubs they have, Shimano advertised a couple of years ago, they were returning their hubs to loose bearing balls, not sure if those are in retainers or not. I think the whole cartridge thing is racing technology, with a BB you pull out the cartridge and stuff another one in. Headsets, if kept properly adjusted
should last as long as the frame, they don't actually move that much, the press fit cartridge in that case works as well as anything else. For hubs the cartridges really didn't do much good, it's easier for a team to just swap the wheels for another set and get a junior mechanic to rebuild them later, if they even bother.
One thing though, a traditional BB if it's repacked with new bearings every 1000 miles or so and kept properly adjusted, should also last pretty much as long as the frame, on a new frame, I would just use the cartridge type. On an old BB, I would try rebuilding it, before replacing it.