All Balls Swing Arm Bearing Kit 28-1215Contains all of the bearings, shafts, seals and bushings required to rebuild a swing arm to factory specifications Manufactured from 52100 bearing steel for improved performance and extended life Feature Teflon D coated washers in place of the thrust needle bearings Teflon D coated washers offer superior resistance to dirt, water and lack of lubrication which are all factors leading to premature failure