... to be honest I have no idea :? .
They are very nicely machined and they look a bit like ROOX cranks.
I bought them a while ago but will not use them in the near future.
So if there´s anyone out there with more info ......... please make me/us a bit wiser
Just checked
approx. 200grams for the left arm and 470 grams for the drive side incl Chainrings and bolts.
Makes 670 in total but don't shoot me for a few grams more or less