What this headset is
A fully integrated (IS) drop-in headset designed specifically as a replacement/spare for the Scott Foil 2023 road bike frame.
- Brand: Syncros
- Type: Integrated (IS) headset
- Use: Road bike (aero race frame)
Key Standards (Very Important)
These numbers define compatibility with your frame and fork:
-
Upper headset (top): IS44/35
-
Lower headset (bottom): IS52/40
This means:
- Frame head tube inner diameter:
- Fork steerer:
- Tapered 1" to 1.5"
- Crown race seat: 40 mm
This matches modern aero road bikes like the Foil.
Construction & Features
-
Sealed stainless steel cartridge bearings
- Smooth steering
- Corrosion resistance (great if you ride in wet/coastal areas like Cape Town ????)
-
45°/45° bearing angles
- Standard for integrated headsets
-
Fully integrated design
- Bearings sit directly in the frame (no pressed cups)
What’s included
- 2 × cartridge bearings (top + bottom)
- 1 × top cover cap
Not included (typically reused or frame-specific):
- Compression ring
- Spacers
- Crown race (sometimes integrated on modern forks)
Weight
- Actual measured: 58 g (very light, typical for integrated setups)
Compatibility Check
This headset is only correct if:
- You have a Scott Foil 2023
- Or another frame using:
- IS44/35 (top)
- IS52/40 (bottom)
If your bike uses different SHIS codes (e.g., IS42, ZS, EC), this will not fit.
Quick tip
If you’re replacing a worn headset:
- You usually only need bearings, not the full system
- Match the SHIS code printed on your old bearings to be 100% sure
