richardf
Retro Guru
Just after the U-shaped retaining clip, but would take the whole bolt plus clip if available.
To suit 9/10 speed rear mech.
One of these:
http://www.bikepedia.com/pa/Item.aspx?itemid=832072
				
			To suit 9/10 speed rear mech.
One of these:
http://www.bikepedia.com/pa/Item.aspx?itemid=832072
 
 
		 
 
		
 However, I have no idea what diameter I need and have no accurate measuring device. Anyone with an idea?
  However, I have no idea what diameter I need and have no accurate measuring device. Anyone with an idea? 
 
		 
 
		 
 
		 
 
		