This is often used in road/lightweight XC MTB bikes. Using the same 36/45 deg bearing size as all the other headsets this is different to an Integral in that it uses ‘seats’ for the bearings as opposed to cups pressed into the frame. 61g.
Effectively a ‘zero’ stack. Only available in black.

Features:
• Full stainless steel bearings (replacable)
• Split crown race
• Common parts throughout the range
• All parts available as spares and fully rebuildable