On the other hand, OSS puts the rider in a more aerodynamic position, makes it easier to walk the bike and allows the rear view mirror to be closer to the riders eye thus providing a larger field of rear vision. They require heavy and somewhat inefficient internal hubs or heavy cross-drive systems to achieve appropriate gear ratios. Seat Height Vs. If the crank height is about the same as the seat height you will be in a more powerful and aerodynamic riding position. On the other hand, the lower crank height on the BikeE and Tour Easy may make the bike less intimidating and more comfortable for some riders.
Recumbent tandems are awesomely comfortable and superior performers as well.
Superior aerodynamics plus better uphill performance means you won't be sacrificing speed to get all that comfort. Recumbent tandems are making enormous inroads into the tandem world. Good recumbent tandems and good upright tandems are about the same price. After three years on recumbent tandems we can't think of any reason that we would want an upright tandem. Vision and Rans are clearly the best recumbent tandems on the market.