Originally Posted by
T-Mar
While I haven't seen a prior application of a tandem, this could easily have been attained using a couple of Shimano FFS (Front Freewheel System) cranksets that came out in 1977. I imagine that somebody probably tried it, back in the day.
Yes, the system reminded me vaguely of the short-lived FFS when I saw it.
I always enjoy seeming something novel in bicycle transmissions, and the DaVinci system certainly qualifies.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069