I recently built and bought a Gmade R1. I put everything together but at the end still had 2 of the smaller bearings left. Did i miss something or was Gmade just generous in giving me spares?

Also when i was putting my front axle together the main gear and outdrive gear would make a slight click as if there was a rough spot. i figued it would wear itself out eventually and completed the axle anyway. anyone else have this?