We have a Seven Ti Axiom 007. And it is a l o o o o ng one, for my stoker. In fact, it is the longest wheelbase I know of and as it now is, some years later in our late 60's , we could go shorter. And we might, if I buy that Hawthorne E-Tandem I've been drooling over. But the chatter about flex is, in my opinion, chatter. Other tandem riders (I know and have done tours with two Lynskey guys) I have spoken to allow that low spoke count wheels are the source of flex. And I have a set of Spinergy's too. Just tell the folks at Seven what you weigh, how you ride, and what you want. Compare the draft drawings to some other tandems in the shop, other tandems, specs of that guy in California who builds tandems and knows everything, and then buy a Seven. You won't regret it.
PS - get some 40 or 48 spoke wheels too. Just think about it.
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