Outer Limits 4x4 Board

Hey Guys,

Just wondering if anyone knows what grade the 3/8" loose ball bearings are in the brake set up?
Got a couple that are an odd shape and need replacing, so might as well do them all.

Cheers, Dano.

When it comes to chrome steel balls, you usually only have 2 grades, SS and chrome steel. I doubt they are stainless