The Avian Step-down Integrated headset is generally for mini-expert sized bikes with a 1-1/8″ head tube that uses a fork with a 1″ steerer tube.

Step-Down :

• 8mm carbon fiber top cover
• two 1-1/8″ sealed bearings.
• 1″ bearing race & hardware
• 1″ star-nut
• Avian laser logo top cap & screw