The rails are very rigid due to the besonderesn profile. The additional straps for the wheels are again secured in addition under the rail in a movable member, so they do not easily fall off when loosening or even give better grip.
On holidays, I had the opportunity to see various other bike carriers, the Thule. I was pleasantly surprised: The EUFAB-carrier is much more stable and is designed mE also an e-bike reliable wear. In particular, the double lock possibility at Holm ensures reliable support! For current ridiculous price of 35 euros, in contrast to other traders a buy recommendation!
3 pieces of it fit well on the roof rack when the average carrier is mounted offset by 180 degrees.
Incidentally, also fits a Puky children's bike 18 speed on such a support.
Addendum 04.24.2014: Still the carrier is in use. No rust and no fatigue.