Originally Posted by
azza_333
I am curious to know how long bearings last for certain parts, I will be putting 2000-3000km (1300-1900mi into a new bike I’m building, then taking the bike on a 5000km(3100mi) trip, whilst on the trip I won’t really have a chance to service/replace bearings.
So before I go on the big trip, what bearings should I consider replacing? (im pretty mush asking what bearings will last 7000km/4400mi)
I'll tell you when I wear them out. That could take a very long time, however, considering that I have two sets of Phil Wood hubs with 16,000+ and 11,000+ miles on them. They are showing no signs of needing replacement nor have they needed any kind of maintenance. I've had lots of other cartridge bearing wheels that I didn't keep such meticulous records on but I've only ever had to replace bearings in 2 wheels. They last roughly forever...and a lot longer than cup and cone bearings.
Originally Posted by
azza_333
Jockey Wheels: Shimano XT RD-T8000 rear derailleur
Bottom Bracket: Shimano BB-MT800, unknown bearing type
Front Hub: SON28 disc brake front hub, cartridge bearings
Rear Hub: Shimano XT M756A rear hub, cup and cone bearings
Pedals: Nukeproof Horizon Pro Flat Pedals, bushings & cartridge bearings
Headset: FSA Orbit MX headset, cartridge bearings
Since this is all new stuff (from your build post in Touring), I wouldn't expect any need for replacement on anything for a very long time...even the cup and cone bearings on the XT rear hub. I would suggest that you check the adjustment on the XT hub bearings before you start, however. In my experience, Shimano hubs are too tight from the factory.