Material: Bearing steel and butyl rubber OEM ID: 52141-KZ4-J40, 52142-KZ4-J40, 91253-KZ3-861, 91283-ML7-003, 91071-MJ0-004, 91072-KZ3-861 Bushing Size: 17x22x59 mm, 17x22x54 mm Oil Seal Size: 30x37x4 mm, 22x29x4 mm Bearing Size: 22x29x30 mm, 22x35x6 mm Weight: 273 g Color: Silver, green Quantity: 1 kit Fitment: Designed for CR125 models from 2002 to 2007 Package Includes: 2 swing arm bushings, 6 swing arm thrust bearings, 4 swing arm oil seals, 2 swing arm needle roller bearings This motorcycle swing arm maintenance kit provides all essential components needed to rebuild the swing arm on CR125 dirt bikes.Made from bearing steel and butyl rubber, the parts offer performance under demanding off-road conditions.The kit includes sized bushings, thrust bearings, oil seals, and needle roller bearings engineered to smooth and reduced friction in the swing arm pivot system.The oil seals help keep contaminants out while retaining lubrication, supporting long-term function of the swing arm assembly.With a total weight of 273 grams, the kit adds minimal mass to the bike.Components are designed for direct fitment on applicable models, simplifying the rebuild process.This complete set is suitable for riders and mechanics looking to restore proper swing arm function with a full complement of replacement parts.