May alog na ba yung crank mo? at anong klaseng BB naka kabit sa bike mo?
Wala po syang alog. Alivio crankset sya. Last week ko lng pinakabit.
hollowtech na alivio ba ito? nakatono ba ang drivetrain at lubed?
rhythmic ba ang tunog or random? kapag rhythmic you might want to look at your pedals. kapag random, check your bb... kung hollowtech, unless bearings are done, it might be just as simple as adjusting the preload.
kung legit na sira na bearing or maganit, replace the bb. i really don't see any value repacking the bb unless you're really tight in budget since it will only recur.
kung old alivio model, most probably sealed bearing yan at square taper. kung dehins orig ang bb, palitan mo ng orig na shimano cartridge. my first bike had a square taper bb of an unknown chiwanese brand - didn't last a month in my use. when i changed to orig shimano, nakabuo nako ng bagong bike swabe parin ikot.