On the good advice of this forum we placed our order for a Co-Motion Mocha, with 26" wheels, Tropical Green (I resisted putting up a poll for the color). Until delivery in May I have a little time for last minute tweeking and options. This forum is great, answers keep on comming, hope to be able ta pay back some day, though I have been able to cotribute a little.
So now the question is gearing.
So far the order is for:
52-39-28 chain rings , and 11-34 10sp IRD Cassette with Shimmano Ultegra STI shifters
1. 28/34 seems awfully low, particularly on 26" wheels no?, and I do get to 54/11 on my single infrequently, so shouldn't we have a 54/11 on the tandem? My gut says 54-30 / 11-34 . So go with my gut or listen to the shop's advice. Or go half way 54-28 on the chainrings?. I believe I have 54-30 / 11-28 on our current tandem, and have not seen a hill we could not tackle, admittedly we have never done the steepest of hills with a fully loaded bike.
2. Going back to a question previously posted, 10 speed cassette or 9 speed in order to have less trouble finding chains? This question was asked in New bike 10 speed or 9 speed ultegra? I guess I better go ask my LBS if they have any 10 speed chains.
Bike will hopefully see loaded touring on mountain terrain, but sees a lot of flat land around Buenos Aires, and rolling hills across the river in Uruguay. 310 lbs team, 4000 km/yr, not the most powerful of teams, but we can pull our weight.