Alex321
Guru
- Location
- South Wales
I actually have a pair of them that came with one of my bikes, but one of the spokes pulled it's retaining nut/insert (whatever you want to call it) so I have a very loose spoke. Finding spares for it isn't so straightforward.
They are incredibly light though.
It's called a spoke nipple. Might help you to search for spares if you know what it is called .