If the Thule first clamped on the rail carrier, the installation and fixing of the wheels as well as securing the locks are a cinch. However, my initial installation has our towering Van in the dimly lit parking garage and the purely graphically designed instructions (Ikea style) demanded a lot. Tip: During the day, mounted in pairs and in advance of the holiday travel. Tip of Thule: The coverage between actual appearance of individual parts and their graphic representation in the documentary could be better. To classify: My Thule initial purchase and at all the first roof-Fahrradttransport my driver career.