Pitted BB; that's a very, interesting? claim.


Grab your cranks, and then try to wiggle them perpendicular to the long axis of the bike. If they move back and forth, you need a new BB.


There's no rush to change the BB until they exhibit wear, as found by the wiggle test. Since modern bottom brackets include bearings, races, and the center shaft, there's nothing they can affect as they wear. If yours is actually worn out at 1,000 km, that's a new low record that I've heard of.