Removing surface rust from my Eggbeater pedals?
You're probably best with a metal brush the consistency of the items recommnded in the question below. Ultimately it's gonna happen though so all we can do is our best to dry up and clean up items. At some point they need replacing. A bit of light oil on the pedal the night before a wet ride might help keep of the rust by not letting water in. Of course it will attract dirt (hence the night before recommend so it dries).

Dealing with rust on a steel frame