FSA headset NO.57EP/Internal alloy cups, 1-1/8’Upper, 1.5’Low-OD 50/62 (OEM)

Internal headset designed for frames with a head tube:
• Top: 44mm inner diameter/50mm outer diameter
• Bottom: 55mm inner diameter/62mm outer diameter
• 1-1/8" TO 1.5" steerer

Bearings included.

Top cover height 25mm.
Headset height outside frame (stack height): 20.6mm
Weight: 125g

Product ID: 24816