Replacement for 45940-84 upper and 45866-84 lower fork slider bushing. Dimensions: Upper bushing 45x12x2mm; lower bushing 42x20x1.5mm. Kit includes 1 upper and 1 lower fork slider bushing. Enough to service one fork leg. Order 2 kits for one motorcycle. Used inside the lower fork slider to guide the fork tube. Bushings are plated steel; the PTFE coated inner ling reduces friction / fork-stiction over other materials. This super slick surface provides smooth suspension and helps reduce friction and wear. Used inside the lower fork slider to guide the fork tube. The SKF composite bushings are copper plated stainless steel; with a PTFE based inner lining to help reduces friction / fork-stiction better than other materials. To enhance heat dissipation during operation; a thin bronze layer forms a robust bond between the backing and sliding surface. The super slick sliding surface provides smooth suspension and does a great job in reducing friction and wear. - PTFE based low friction seal - Low stiction - No maintenance - Low friction under side load - High load carrying capacity - Temperature stable - Small operating clearance for improved guidance - Dimensions marked for quick identification