I’ve never lost the chain on the outside or it’s been long enough ago that I don’t remember as I’ve not ridden mine with the protector since about 1976. As for the crank, I liked the concept of the one piece crank and changed out the sprockets to save weight and change gearing on one of my other Sports. Only about a pound heavier that a 3 piece setup.
https://www.bikeforums.net/classic-v...an-t-i-do.html