Experimental rack perimeter:
¼" stainless steel and 5mm carbon fiber rack perimeter. Approximately 7.5 × 9.5" & 30 grams dry-fit. I ran out of stainless steel, so it came to a stop here, but I need to braze together some lugs for the central rails, light mount, fender mount, & fork blade/crown stays (because ohfuckno I’m not going to take a stone to the carbon fiber because I’m planning on another 40 years of use out of my lungs and filling them full of carbon fiber dust would not help.) before gluing the whole shebang together and plunking it onto my traditional randonneuse.
(Now 50 grams. The one long-legged lug is the one that’s going to have the di2 battery mount brazed to it.)
I’m hoping for ~100 grams for everything, but it’ll probably be closer to 150 grams after gluing everything together and clearcoating it all.