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Old 03-12-13, 11:55 PM
  #42  
zonatandem
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Join Date: Dec 2003
Location: Tucson, AZ
Posts: 11,019

Bikes: Custom Zona c/f tandem + Scott Plasma single

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Turbo #37 reply:
Apparently you missed our earlier posting. We went from triple to testing Di-2 on our tandem.
Great for about 1,400 miles. Wonderful instantaneous/crisp shifting; loved the automatic FD/chain alignment.
No real issues with going from triple to double chain rings.
Did not love the fact that idiot warning lights did not give warning that it was time to re-charge battery; however FD quit . . . so knew it was time to re-charge.
About 300 miles later tandem quit shifting completely. Battery connector issue + FD would not adjust via the adjusting screws.
All this happened while climbing a hill, which we ended up walking.
Went back to triple with 9-speed bar end shifters.
Reliability is important; we feel electronic shifting is still in its infancy.
Next will be we wireless electronic shifting. Just like what happened with our cyclometers back when we started in 1975 to wired computers to wireless 'puters.
Happy we tried Di-2; glad to have the more reliable mechanical shifting/triple back on our tandem.
Just our input.
Pedal on TWOgether!
Rudy and Kay/zonatandem
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