are they definitely dura ace? i have found from
recent experience that there were three dyna drive
(large pedal hole) cranksets. dura ace and 600 ax
(there is a website devoted to ax and its afficianados),
and the deore touring i was looking for components
for. this last crankset seems to have been made along
the lines of a t.a. cyclotouriste, with a crankarm
that has a small radius set of chainbolts which
allows you to mount a 135 double or a 110/74 triple
setup on the same crank.
yr obdt svt
Stephen Fredette
Hull, Massachusetts