Bicycle Lower Headset Bearing Head FSA 1.5 36/45 ACB MR127 Each New Tapered Fork Genuine replacement bearings for FSA headsets May fit other models Sold Individually SEAL IS BLACK, NOT BLUE. SAME BEARING. Model: FSA Type: MR127 Fits: 1.5" Angle: 36/45 Cartridge Size: 51.9mm OD