Repacking hubs and BB every 500-1000 is nuts. Maybe do it when you first got the bike (you have no idea how well the previous owner maintained the bike). After that, once a year would be good if your bike sees a lot of rain - every couple of years otherwise. Chances are your BB is a cartridge, which is essentially maintenance-free - I pull my Chorus BB every few (3-4) years just to ensure that there's a little grease on the threads. I probably had ~40,000 miles on it before the flange cracked, but the cartridge itself was still fine. Cartridge BB maintenance comprises "replace it when it starts feeling rough"
Last edited by Litespud; 08-04-20 at 02:15 PM.