HEADSET FSA SEMI-INT GRAVITY DX 1-1/8x1.5 ACB-UPPER LOOSE-LOWER

For tapered 50mm/57mm OD head tube

For 1.5` headtube and 1-1/8` steerer

1-1/8 alloy internal cup with 36°/45° ACB sealed bearing upper

1.5 cromo external cup with caged ball bearing lower

188g