As Pompiere said, it is a Peugeot TH8, 1983. I couldn't say if it is exactly like P's - I recall he posted pics of his a few months ago - and most likely they are the same. Peugeot made two models, the TH8 with double diamond configuration and the TM8 (I think it was called) with diamond/mixte configuration. I don't believe they made the TH8's in different sizes. So it might not fit you two.

The thing is, it has double lateral tubes running from the headset to the DOs, and also a pretty large oval keel tube. I don't know if that is how Peugeot made them throughout its life but I do know the competing French tandems from Motobecane and Gitane were not like that. In any case, we have been quite happy with it, have put in thousands of miles including two mini-tours with the bike loaded to 100 lbs. (Yeah, it is a bear that way, but once unloaded at the end of the day it feels like a rocket.) The French components have been quite good. Our concessions to modernity are the stoker's crank is 140mm, and wheels. The rims are Mavic A319, supposedly touring rims, the front hub is a Shimano 105 while the rear hub is the original Atom.





If I were buying a tandem today I'd go more modern. Brifters would be nice for the occasional shift when I'd rather not take a hand off the bars or when the terrain goes up and down and up and up and down and down and up and down all in about 30 seconds. Our bike weighs about 40lbs without its racks; a newer bike would be lighter. I'd probably consider Co-motion first or perhaps a custom Seven for big bucks, but it isn't about brand, it's about feel and fit. But the thing is, Sharon really really really likes how she fits ours so she won't let me even think about another one. On the bike I may be the captain but she is the rear admiral.

Plus, ours is the coolest bike in the state.