[JesseK]

I was just about the echo that sentiment Al. Usually to do a direct drive from the transmission to the wheel you need good pillow blocks built into the frame or mounted below it. The weight savings of the chain/sprockets becomes negligible at that point.

For 1885's design, I find that using the flat AM aluminum sprockets and #25 chain is a few ounces lighter and less expensive than buying pillow blocks.