So I spent too long last night switching out the rack and installing the rear fender after it arrived from BikeBrompton.
After which I realized the rear fender is extremely floppy and probably needed mudguard stays to firm it up. However BikeBrompton has not provided any additional parts beyond the fender, flap and screws. Before this all I heard is I need the fenders and that's it.
Can anyone confirm if I need to buy additional stays when converting from R to L-types?