Old 07-31-20, 06:55 PM
  #5  
Markeologist
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Join Date: Jun 2020
Location: Marin County, Alta California
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Bikes: Since new: 86 Rodriguez Tandem, wife's 87 Gitane Team Pro, 92 Burley Rock-n-Roll, 85 Fisher Comp, 88 Puch Pro, two 92 Bridgestone X0-1s; later: 66/67 Gitane Champion du Monde, 70 Gitane Super Corsa, 70 Carre, 87 Gitane Team Pro, 77/78 Ritchey Tandem

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Originally Posted by embankmentlb
I believe in those days tandem groups were just combinations of the regular road cranks. I have seen 7700 cranks done that way for tandem use.
Nope...if you have the synchro chainrings on the left side (cross over) your pedals would work themselves loose if standard cranks flipped around were used. TA, Campy and Stronglight had tandem-specific cranks in 60s and 70s with the sychro chain placed on left.

Last edited by Markeologist; 08-01-20 at 09:35 AM. Reason: Addition
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