Originally Posted by
lajt
When you say "nub", do you mean the wider round barrel piece at the backend on the outside of the claw? So that piece is screwed on? If so, how do you actually turn the screw? Is there a slot for a flathead screwdriver on the end inside the claw?
On my Italian bike (2nd pic) it definitely has a slot for a flathead, but I assumed the other two were turned using your fingers on that large head, since it has knurling.
It is basically a slotted machine screw and spring screwed in from the open side of the claw…the nubbin (like on nlerner’s pic above) gets screwed on to prevent gouging yourself I assume.
The spring maintains the tension I assume.
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1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750