I have the Thule Rapid footpacks Thule Rapid footpacks 757 for rail vehicles, the Thule Aluschienenprofile Thule 861 aero bars, 1 pair, 120 cm, Rapid system and two Thule FreeRide Thule FreeRide 532 Roof bicycle carrier whim ordered 5 days before our holiday. After 3 days, everything was there and fit like a glove on my car roof. I'm going with the recommendation of Amazon complied to order these 3 items in the set, which was perfectly adequate, since you no longer need. As a precaution I had even the T-slot adapter THULE 889-2 T-slot adapter 20x20mm ordered for THULE 532 and 530, although I did not need because the holder of the FreeRide fits around the Aluschienenprofile around it easily. The adapter is only needed when using the SlideBar or WingBar because they are considerably wider than the Aluschinenprofile. With the installation I had no problems, the drawings are very helpful and with a little imagination and envisioning everything is assembled quickly. Also the build-up on the car roof went smoothly. Genial I find the installation of feet, because the castle is simply pulled out until it clicks into place and serves as a "screwdriver" - Went Potty. As a woman, you should only be organized during loading and unloading a strong man, as the Promotion or demotion lifting the bicycles but requires some force. The actual attachment is then again a no-brainer. Nothing is loose or wobbles, all sat bombproof. The possibility to conclude everything is simple but ingenious solved. When driving I did not notice anything of the wheels on the roof, neither noise nor movement. I'm super happy and regret buying any minute. Only the T-groove profile that I send back. What has impressed me most is the modular principle, is working with the Thule. you can also have a roof box or a ski box or or or transport ... everything is just top assembled on the existing Aluschienenprofile - genial, almost like Lego. So to all those who still think: Thumbs up for these products. Good quality, good workmanship, easy installation, safe transport - each of the 5 star is earned.