FSA Bicycle Cycle Bike High Quality Headset IS-2/42E/ACB 1.1/8-1.5″, 6.7mm TC

For tapered 48mm – 56mm OD head tube

Angular Contact Bearing (black seal)

Stack height 15.5+0.7=16.3mm

For 1.1/8" to 1.5" tapered fork

1.1/8", 4545 ACB Upper

1.5", 3645 ACB Lower

Steerer : 1.1/8-1.5"

Brand Name : FSA

Lower : 51.8mm

Upper : 41.0mm