They ran Shimano Dura Ace and Campagnolo roadie 3 piece cranks on pre 80s bikes in the states.
Can be a little pricey to pick up as the vintage road boys like them.
I used to have a set of 81 Shimano 600s, very similar to Dura Ace, mounted on my GT below.
![](http://www.radbmx.co.uk/archive/albums/kk42/fouronethreeoh/gt/gt4.jpg't=1254424917)