Bianchi headset help...please

Johnsqual

Senior Retro Guru
Hey,

I recently bought this Bianchi. I want to give the headset a bit of a clean,
but I have no idea how you unscrew this type. It's similar to the one in the photo above, and has holes in both the top bearing race and the nut - is
there some kind of tool that fits these holes?

Thanks for looking and thanks for your help,

John
 

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do the holes contain a grub screw? it will have a socket for a tiny allen key if so?

P409.jpg
 
There are a number of specific headset spanners for just this sort of headset. The generally have an adjustable jaw with two pins facing inwards. I have personally used a pipe spanner clamping onto a rag wrapped around the lock nut. I have also used a strap spanner that works reasonably well.
 
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