We made the Fendor-Bendor for all cyclists who don't want a permanent fender on their bicycles.
It folds up into a small, flat package, so you can always bring it with you.
Once it starts raining, it can be securely mounted on the bike. Within seconds.
Buns out! Fold it up again.
SO, HOW DOES IT WORK?
It's made out of plastic sheet (recycled Polypropylene) with dye cut folding lines. By Pre-shaping, it becomes a stable fender.
The material is initially completely flat and wouldn’t work as a fender. But by pre-shaping it along the folding lines along its length, it gets surprisingly stable. Storm proof. Race proof.
This stability is enhanced...
... by the way it connects to the seat tube: it's pulled into the right, stable shape,
... and because it is held in the correct, stable form by the seat stays.
To fold it up, it should be actively made flat again, and then it folds up in three, along the transversal folding lines.
This is basically how it works: