Reminds me of a rack a friend and I made for his girlfriend's bike (but yours is obviously way more pro). It was when we were at university, coming home drunk one night I saw an old dog fence thing for a car in a skip. The sides had these U shaped chrome pieces that slide in and out. We took the chrome pieces home, pinched the ends and bolted it together. Still in use 15 or so years later (just asked him to send me a photo).
Reminds me of a rack a friend and I made for his girlfriend's bike (but yours is obviously way more pro). It was when we were at university, coming home drunk one night I saw an old dog fence thing for a car in a skip. The sides had these U shaped chrome pieces that slide in and out. We took the chrome pieces home, pinched the ends and bolted it together. Still in use 15 or so years later (just asked him to send me a photo).