Joined: Jun 2009
Posts: 2,242
Likes: 1,660
From: PacNW
Bikes: Dinucci Allez 2.0, Richard Sachs, Alex Singer, Serotta, Masi GC, Raleigh Pro Mk.1, Hetchins, etc
get a longer bolt and use that to squeeze the ears of the bracket together
then re-install the original if you can make it fit
I do not care for this type of clamp.
you might line the inside surface of the clamp with clear tape trimmed to shape
/markp