The FSA Orbit X‑1 SL is a lightweight and reliable threadless headset designed for 1 ⅛″ steerer tubes. It features forged and CNC-machined 6061-T6 alloy cups, an alloy top cover, angular-contact cartridge bearings, and a sealed design for durability. With a compact stack height and internal alignment tip, it delivers precise steering and smooth operation in a range of riding conditions.

• Fits 1 ⅛″ steerer (EC34/28.6 or EC34/30 standard)

• Forged and CNC-machined 6061-T6 alloy top cover and cups

• Sealed angular-contact cartridge bearings for durability

• Stack height: approximately 31.6 mm (18.4 + 13.2 mm)

• Patented alignment tip ensures proper bearing orientation

• Weight: around 95 g

• Top crown race made from 7075 alloy for enhanced strength