Wow, that's some vintage Huret; the long-cage Luxe and the levers the length of fondue forks. My friend, whose father's bike my Gran Sport was, started riding with me in 1971, and he rode a Raleigh a step or two down the line-up but with those exact derailleurs/levers.

Thanks, I'll take that into consideration, although I am really, really inclined to select tanwall tires...