Gravity DX Pro Headsets, tapered headtube compatible.
- Lower 1.5", standard cup
- For 1-1/8" to 1.5" steerer tubes
- 44mm Upper Headtube Inside diameter
- 49.57mm (Standard 1.5") Lower Headtube Inside diameter
- 39.8mm Crown Race
- Upper Zero-Stack cup presses into head tube
- 36/45 degree ACB (Angular Contact Bearings)