Swing Arm Repair Kits contain all of the bearings- shafts- seals and bushings required to rebuild a swing arm to factory specifications. The shafts are manufactured from 52100 bearing steel for improved performance and extended life. The kit features Teflon coated washers in place of the thrust needle bearings. The Teflon coated washer offers superior resistance to dirt- water and lack of lubrication which are all factors leading to premature failure.