(AA) This includes 2 x sealed bearings for the upper and lower headset cups 2x MH-P03K sealed bearings. Also known as TH873E, MH-P03K, MR122, MR054 p03k TH873E, MR122, MR054, MR115, HSS20130K, PT-R401, AC3041 R2 nhb-5d These are quality bearings from supplier Minhon Bearing Spec: ID - 30.15mm OD - 41mm H - 6.5mm Angle - 36˚ 45˚ Race material : chrome steel GCr15 / AISI52100. Ball material : chrome steel GCr15 / AISI52100. Cage/retainer : Nylon PA66+25%GF. Seal : rubber seal, double-sealed. Black and blue Lubrication : Mobil XHP-222 or HTHS #2. |