FSA Orbit NO57.E 1-1/8 1.5 tapered headset - 121-0501

FSA ORBIT 1.5 ZS Headset – NO.57E

Ref. Code: 121-0501
EAN: 4712010050260

Product Description
The FSA ORBIT 1.5 ZS (NO.57E) is a semi-integrated headset designed for tapered steerers.
Featuring angular contact bearings (ACB), it delivers precise steering, high load capacity, and long-term durability, making it suitable for road, MTB, and urban riding.

Key Features

• Designed for tapered steerers: 1 1/8” – 1.5”

• Semi-integrated (Press Fit / Zero Stack) construction

• Angular Contact Bearings (36° / 45°)

• Alloy top cap

• Durable CNC-machined lower cup

Technical Specifications

• Type:
    • Headset

• Model:
    • ORBIT 1.5 ZS

• Version:
    • NO.57E

• Integration Method:
    • Press fit, semi-integrated (Zero Stack)

• Compatible Steerer:
    • 1 1/8” – 1.5” tapered

• Head Tube Outer Diameter:
    • Upper: 50 mm
    • Lower: 62 mm

• Head Tube Inner Diameter:
    • Upper: 44 mm
    • Lower: 55.95 mm

• Steerer Tube Diameter:
    • Upper: 28.6 mm
    • Lower: 38.1 mm

• Bearings:
    • Angular Contact Bearings (ACB)

• Upper Bearing:
    • Outer diameter: 41 mm
    • Inner diameter: 30.2 mm
    • Angles: 36° / 45°
    • Height: 6.5 mm

• Lower Bearing:
    • Outer diameter: 51.8 mm
    • Inner diameter: 40 mm
    • Angles: 36° / 45°
    • Height: 8 mm

• Stack Height:
    • 8 mm

• Material:
    • Aluminum

• Color:
    • Black

• Intended Use:
    • Road, MTB, Urban / Commuting

• Weight:
    • 124.6 g