HB2210
Senior Member
+1 Pay a few quid more and get from the LBS (preferably a Giant dealer)
I don't think headset and groupset have anything much to do with one another. I have the same headset as a stock bike on my Genesis build but a completely different groupset (SRAM vs 105)
Do you not know exactly what frame you have? No stickers?
No it just says compact tcr, nothing else apart from the serial number ... Oh and made in the Netherlands ..