Thank you all, for your kind words! @autonomy. My printer is a Prusa MK2. The filament is Prusa PLA silver. Layer height is 200μm. Prusa is a very capable FDM printer. @Darth Lefty, I just stick electrical tape on the fork, to avoid scratching it, but it is also prevents the bridge from slipping. @Colorado Kid, you are right but the bike is not mine (it is my girlfriend's and she doesn't like the look of the flaps).