I rode it for a 90km (56 miles) trip and it was super strong, i uploaded the 32,1mm and 27,2mm diameter of the seat post, also i uploaded the original files in case you want to costumize it.

FOR THE ASEMBLY YOU WILL NEED:
-4x M3x25 screews
-4x M3 nuts
-8x M3 washers

No problem with rubbing the leg and the mount!!

if yoy make a remix, please let me know, i'll be super happy for that