FSA Headset Bearing MR139

- Installation available in-store (fees apply).

This is a genuine FSA MR139 headset bearing, a steel angular contact bearing (45x45 degree) for 1-1/8" road and MTB headsets.

Dimensions: 30.2 x 40.4 x 6.3
Chamfers: 45/45
Inch Ref: 1-1/8"
Model: FSA MR139
Bearing Type: Steel, 45x45 degree angular contact
Weight: 22g
Compatibility: 1-1/8" steerer headset, Road/MTB