Set of 3x SB208ZZ-50 C3 Go-Kart Bearings 50x80 with High Speed PS2 Grease Each bearing has free spinning ZZ non-contact metal shields and high speed PS2 grease PS2 high precision grease has high grade synthetic oil as a base, as well as thinners and special additives It is excellent wear and corrosion resistant with service life characteristics This product is suitable for high-speed, low temperature machinery use Perfect for racing ___________________________________________________________ Fits: Kart with 50mm Axle ID: (mm): 50mm OD: (mm): 80mm All parts need to be fitted by a licensed Technician Premium bearings made from premium alloy steel to provide superior fatigue life and reliability Precise heat treatment, dimensions and surface finish contributes to reliable bearing performance Each component undergoes ACCOR's rigorous testing to ensure quality standards