I'm finding a few graphite bearing around the bike, like on the bracket holding the caliper to the front axle. Do they take any lube at all or just watch them for play/movement? With the front axle out the rockers do wiggle some but have no movement perpendicular to the axle. I was leary of removing the rocker for fear of discovering some spring tension which would make it difficult to re-install the rockers. Are they also graphite bearings? No lube?