Brompton C-line 2025 rear rack

please note this is for a 2025 Brompton C-line with a updated rear triangle. for structural strength please use at least a PETG or PLA+ (I used PLA+) but I highly recommend ABS or ASA. then TPU for the tyre you are going to need: 10mm carbon fibre or aluminium tubes (2 X 250mm, 2 X 190mm) sand paper or file to roughen the tip of the tubes for lug adhesion. Strong multi surface glue, I used Gorilla contact adhesive 2X 50mm M5 nut and bolt for the rear end assembly 8 X 15mm for the wheels 4 X 20mm M5 nut and bolt for mounting to the frame (you may need to file the excess bolt thread on the drive side to prevent it from touching the chain or just add extra washers) bolt washers