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This disk is for the Right (non brake lever side) of the Bugaboo Gen 3 I've added a link to a Norwegian repairers You Tube video showing the Left disk the right is a mirror of this. The plastic pins on this disk are a common fail point and if you plan to keep your stroller long term you should consider the stainless steel version this is a seperate file also in this shop. I've yet to have any problem with the other hub sections so don't worry to much about most of this video.
Note while the plastic disks aways fit the stainless steel ones may need a little file / dremmel work to open the centre hole. This is due to the lower tolerance of metal printing.
Due to the higher shipping costs I've decided to make this file downloadable. However I do not recommend printing these parts on a home DIY 3D printer they will fail PLA and ABS is not as strong as nylon.