Please measure bearings and headset before ordering! Note this bearing has "non-standard" angular contacts so should only replace bearings from FSA branded headsets. FSA bearings will have a part number (e.g. MR121) printed on the outer race of the bearing.

IDxODxWidth: 31 x 41.8 x 8mm

- 45°/45° Sealed Angular Contact Bearing. 1-1/8"
- Fits upper of: Orbit C-33, and Orbit C-40
- Fits upper and lower of: Impact, Impact PC, Orbit CE, and Orbit C series of headsets
- MR121 (870E-RS)