FSA DX Tapered Reducer Headset.
- Tapered headtube reducer headset for using a fork with 1-1/8" steerer
- Upper ZS assembly: ZeroStack semi-integrated cup, premium 36x45 degree angular contact bearing
- Lower EC reducer assembly: traditional External Cup with caged ball bearings
|S H I S:||ZS44/28.6|EC49/30|