I have never heard of Campy tandem cranks in 172.5. Can anyone confirm these were made this way and not redrilled or helicoiled single-bike cranks?
Steve "rides 172.5 helicoiled cranks on my tandem" Freides
> I recently acquired a nice all-172.5 (N)R tandem crankset that has no date
> codes on any of the arms (it has the early style pedal threading script, all
> "Patent" hardware). When was the Record tandem crank intro'd? Are there 151
> BCD tandem cranks?
> Just curious....
> Greg "always learning" Parker
> hot, hot, hot, humid A2 Michigan
> (Geeked about getting those NOS 177.5 / 151 BCD cranks from Carsten...).