On Monday, April 2, 2012 11:52:50 AM UTC-7, Jim Thill - Hiawatha Cyclery wrote: > > I recently sold my 1983 Stumpjumper, which I rode quite a bit the last > five years. The previous owner didn't ride it as much, but he did regular > maintenance on the bearings. The headset was original to the bike and still > felt smooth. I've noticed that some people always have crummy headsets, and > others seem to never have headset issues. I have never really had headset > problems on any of my bikes. Aside from the Stumpjumper, I use sealed > cartridge-bearing type headsets exclusively, though seldom anything as > fancy as Chris King. Unfortunately the selection of quality 1" threaded > headsets that aren't Chris King is quite limited. > > The key with Chris King and other similar designed headsets is it uses angular contact cartridge bearings instead of the old cup and cone ball bearings or even needle bearings. The Bicycle FAQ sums it up nicely: "Shimano, Chris King, Cane Creek and others, offer angular contact, full ball complement, spherically aligned cartridge bearings. The Shimano cartridge bearings have contact seals, not exposed to weather, to retain grease for life of the bearing. The races are sufficiently reentrant that they snap permanently together with sufficient preload to prevent rocking (fretting) motion perpendicular to the rotational axis. Spherical steel rings, that move as plain bearings against an aluminum housing, support the cartridge bearing to absorb, otherwise damaging, out-of-plane motion while the cartridge bearing does the steering." link: http://www.sheldonbrown.com/brandt/indexed-steering.html
On Monday, April 2, 2012 8:30:12 AM UTC-5, shawn wrote: > How many miles can one expect to get out of a typical headset and >> bottom bracket? > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/G-90FXZhyMYJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
