Chris King NoThreadset SV Devolution 1.5" Headset - Black or Silver - FS0049
The Chris King Devolution NoThreadSet™ SV allows you to adapt a larger bore headtube for use with a smaller diameter steerer tube. Built to be precise and dependable and sets the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world.
Fork Steerer: 1-1/8”
Upper head tube ID: 49.6mm
Lower head tube ID: 49.6mm
Upper head tube ream depth: 20mm
Lower head tube ream depth: 20mm
Fork crown seat OD: 30.1mm
Total stack height: 32.1mm
Lower stack height: 14.0mm