FSA DX Pro Headset Crown Race 1.5" works with Knock Block Headset Systems Tapered Steerers

FSA DX Pro Headset Crown Race 1.5" works with Knock Block Headset Systems
FSA DX Pro 1.5" ACB IS/EC Crown Race
For use on a 1.5" fork Crown.
For Tapered Headsets/Fork Steerer Tubes
Can be used with FSA E2 and knock block headsets.
Model : FSA 1.5'' Lower Crown Race
MFR # : H6083
Steerer outer diameter : 38.1mm (1-1/2")
Color : Silver
UPC: 400310034113