Headset FSA NO.57E 12.3mm alloy 1-1/8 to 1.5

Headset FSA NO.57E 12.3mm alloy 1-1/8 to 1.5

The FSA NO.57E is a semi-integrated Ahead headset designed for tapered steerers from 1 1/8" to 1.5". It offers excellent durability, precise steering and long-term reliability for both road and mountain bikes.

A durable aluminium top cover with laser-etched FSA graphics provides a clean, premium finish, while forged shallow alloy cups enhance stiffness and structural integrity.

36°/45° angular contact bearings improve load distribution, stiffness and smooth steering performance. The headset cone is made from 6061 aluminium. It fits head tubes with an inner diameter from 44 to 59.5 mm (outer diameter 50 / 62 mm) and features a total stack height of 19.8 mm.

• Type: semi-integrated headset
• Steerer: tapered 1 1/8" – 1.5"
• Bearings: 36°/45° angular contact
• Stack height: 19.8 mm
• Material: alloy