You can get Walzenwheels here:

Germany:
Boneless Longboards  /  Black Heaven Skateshop
Concretewave Skateshop
Endless Skate  /  Dekks Skateshop
Hillside Skateshop  /  Hungryhills Skateshop
Funky Summer Longboard Shop
Mantis Longboard Shop  /  Passage 20
Plan B Funsport  /  Quinboards
Soneart Longboardshop
Spinloop  /  Skatedeluxe
Talwärts  /  Titus Hannover
Titus online shop  /  Vibras y Sabor

Europe:
Pipeline Shop
Icone Longboards
Cleanwood Distribution (Austrian Distributor)

Asia:
Amgreat Integration
Victors Boardshop

SUPPORT YOUR LOCAL SKATESHOP. BUY LOCAL IF POSSIBLE.