>for a pic of this, see
>http://www.blackbirdsf.org/lefol/images/frein_caliper.jpg
>
>double pivot. hah! you could have *triple* pivot brakes! :)
>
>-joel
That is the one. Thanks for posting that, Joel. Note that the upper pivot of the caliper is not attached to anything - it wouldn't work otherwise! Neither the lower pivots of the caliper - only the pivots in the center of the "lever arms" are attached to the frame with brazed-on studs.
Triple pivot brakes or quintuple pivot brakes? I'd go with 5 - more
is better! ;-) I must admit I haven't used these, but a friend rode
100 km on the Hurtu tandem that uses them, and said it was fine in
every respect.
--
Jan Heine, Seattle
Editor/Publisher
Vintage Bicycle Quarterly
http://www.mindspring.com/