virtually no useful manual, only a short guide on the back of the package, but in German. It takes a little bit, until one understands the Zusammenhamg, in retrospect, but it was not so tragic. The problem has been the attachment to my mountain bike. From the top of the side racks supports are to vary super, I could set it up so that the mountain under the luggage carrier still can remain the original machine enclosure (dirty things not on the luggage rack) The enclosed two clamps were unfortunately unusable because of a mountain bike seatpost is approx 30mm thick and the two clamps of this are far too small. Therefore, a point deduction in the assessment. Whoever has such a type of wheel, should also order directly a product, from 28.8 to 32.5 mm Ø zBKunststoffschelle or the bike shop around the corner get (hardware store had not). This clamp pull a longer screw and self-locking nut through the two brackets and tighten loose. By eiens suspension mountain bikes, it is important that it remains movable. It has anyway only can be used to secure the luggage rack to tip over, so no major role for the clamp. Otherwise, the porter now holds top