The Campagnolo binder bolt is not one of their best parts. The Simplex bolt is considerably more resistant to stripping. It's the best in my opinion and what I stocked in the shop way back. The TA bolt is also better and available (was available?) in a longer length. The Sugino bolt was also better than the Campy.
Joe Bender-Zanoni
Great Notch,NJ
> Steve Kurt wrote:
>
> >
> >
> > Yesterday morning, I was fortunate enough to take my Raleigh Team
bike
> > out for its second ride (well, the second time *I* rode it). I'm still
in
> > the process of tweaking the fit, so at the 10 mile mark, I stopped to
> > adjust the seat height. While loosening the seatpost binder bolt, I
> > experienced that familiar unsettling feeling... you know.. the feeling
> > where the bolt suddenly becomes very, very loose! Yep, the bolt broke,
> > and I had the pleasure of riding home w/o sitting down. :-P
> >
> > My question is: what are the best options for avoiding this
problem, or
> > fixing it?
> > . . .
> > So, for all of you who've had this occur, how did you fix it??
>
> Steve --- I had a problem with my PX-10 breaking the binder bolt because
the bolt was too long for the seatpost binder "ears." The binder bolt would
bottom out before achieving clamping pressure sufficient to keep the post
up. I muscled the thing down as hard as I could (When all else fails, force
it. If it breaks it needed replacing anyway. Isn't that the old wisdom of
this sort of situation . . . ?) When I realized the nature of the problem,
with a new binder bolt similarly failing to grasp the seatpost tightly
enough, I found a little washer to put on the inside of the "nut." That
little bit of extra grasp on the seatpost fixed
> the slipping problem and I haven't had to adjust my seatpost in 2 years.
Nor have I broken a binder bolt in that time.
> --- David Faulkner in Sacramento