My wife & I used to have a entry-level Trek Tandem that we rode while I was stationed in Hawaii. We really liked it, but sold when we moved. Now, 10 years later, we want to add a tandem to our stable.
We primarily ride mountain bikes on granny-gear-steep technical trails, night riding with lights now in the winter. However we also ride 40-50 miles on the weekends with friend on regular road bikes. My wife always has trouble hanging with me on the road, which always leads to fights, so I need to get back on the tandem and crank when I want and not worry about dropping her.
I'm thinking about a Co-Motion Mocha set-up with flat mtn bike bars and hydraulic disc brakes. We don't race and I'm not concerned about weight. Would like to ride gravel roads some, so that's why I'm leaning towards the 26" tires. Also, my back gives me troubles on my road bike after a few hours, so thinking the flat-bar comfort set-up is the way to go. I was riding my 30#+ full suspensin mtn bike with slick for 50+ miles before I bought my road bike, and liked it for comfort, it just wasn't as fast for my commutes.
Anyways.... Anyone see faults with my thought process?
You'll have to decide on the flatbars - I have my Mocha set up for touring, road bars, panniers/racks, arai drum brake - and tires for gravel and road. Personally I find that most people ride on the top of their bars so that road or flat bars make little difference
I find myself using the drop bars anywhere from 10 to 70% of the time in any particular ride. I use them mainly when facing a head wind, when going down hill trying to pick up momentum, when we need to catch up with someone, and when in a fast pace line. When practicing for or doing a TT I use them 30 to 100% of the time depending on the terrain.
I'd reconsider the drop bars. If you get them up high with the right stem, then your hoods can be at flat bar height and reach. The tops will sit you a little more upright, and the drops will lean you lower. The nicest thing about road bars is the number of hand positions. Flat bars have only the grips, bar ends, and the crotch between them. Drop bars have the drops low in front, the drops low in back, the hoods, wrists on hoods, and the tops. The position variation on road bars will help to eliminate fatigue in your hands, and can help with your rump too.