Koyote and
mstateglfr I thought a cup and cone bearing system has loose ball bearings so if someone inexperienced (like me) opens one up, the ball bearings would just fall out, roll away, and some of them would disappear forever? To me, the advantage of the DT Swiss 350 hub is that there are detailed instructions for both its assembly and disassembly, and if I somehow mess up the cartridge bearings during maintenance (which seems quite a bit harder to do so compared to a cup and cone setup), replacements and/or upgrades are readily available at reasonable costs. Not to mention there is no preload to adjust.