Fsa SX Pro n°55 tapered semi-integrated headset

Features

• Tapered steerer: 1-1/8" to 1.5".
  
• For tapered 50 mm / 61 mm OD headtube.
• For tapered 44 mm / 55 mm ID headtube.
• Alloy top cap 5 mm.
• Bearings outer diameter: 44 mm / 55 mm.
• Bearings inner diameter: 28.6 mm / 39.78 mm.
• Bearings height: 11 mm / 11 mm.
  
• Stack height: 8.8 + 2.4 = 11.2 mm.
• Real weight: 138g.
  

Note: To find the correct headset you need to refer to the code imprinted on the bearings of the previously mounted headset or have a look on the technical data on the frame in your possession.
The choice of headset can also be carried out by knowing the measures of the frame.

• OD (Outer Diameter): Is the measurement referred to the external diameter of the head tube, top and bottom respectively
• ID (Inner Diameter): Refers to the internal diameter of the head tube, top and bottom respectively.

Star nut cap included.