Full Speed Ahead Hammer Heavy Duty Threadless Headset (Black) (1-1/8″) (EC34/28.6) (EC34/30)

FSA Hammer Headset.

Features:

• Chromoly headset with oversized 3/16″ lower ball bearings, 5/32″ upper bearings and a nylon top cover
• Hammer: External Cup, traditional

Specifications:
Model: Hammer
SHIS Upper: EC34
SHIS Stem Clamp Diameter: 28.6 (1-1/8″)
SHIS Lower: EC34
Crown Race: 30
Stack Height: 12.8mm/11.9mm
Color: Black
Weight: 149g