Premium roof bars for all vehicles with roof rails with outer clamping ridge.


The fixation of the width and the rail is reached at the same time. The perfect fastening torque is achieved by usage of the Atera torque hex wrench with T-handle – perfectly prepared for all eventualities.

With its automotive design, the Signo RTD fits in with the latest vehicle generations. The adjustment range is currently designed for more than 90 different vehicles with direct contact railing.

Complete carrier: Signo RTD railing carrier with square profile. For immediate installation.

Complete carrier: Signo RTD railing carrier with aero profile in silver.  For immediate installation.

As kit version: RTD feet and aero profile in black.

signo RTD

  • User-friendly complete carrier. All components are pre-assembled in one package and quickly attached to the vehicle - without tools!
  • The length of the support tube is cut to the specific width of the vehicle and is ready for your vehicle.
  • Maximum load capacity: 100 kg. The maximum approved roof load of the manufacturer must be observed.
  • Perfect contact pressure on the railing with the supplied Atera torque wrench.
  • Anti-theft device with integrated lock.
  • Surface protection by the rubberized clamping jaws.
  • To choose from: Signo RTD is equipped with a square support tube 32 x 22 mm, or with Atera profile.
  • Horizontal alignment of the support tubes: increases the frictional connection.
  • Material: Glass fibre reinforced plastic / aluminium / rubber lips.
  • Suitable accessories: All Atera carrier attachments, water sports carriers, bicycle roof carriers, ski and snowboard carriers








Instead of using the standard rain drop shape, we have introduced a specially designed 'ShapeBreak' at the trailing edge of the bar that controls the airflow in a favourable way. At the same time, the ShapeBreak improves the stability of the cross bar and helps to keep its weight low.


The 'WindBarrier' is a deflector for the air flow and is an important element, with its origin in aeronautics. The WindBarrier creates small swirls, forming an air cushion on the surface of the cross bar which acts as a bridge for the airstream above the T-Slot, preventing the development of noise under all driving conditions.



This means: Atera products are developed and manufactured in Germany - more precisely in our development and construction department in Leutkirch in Allgäu, Southern Germany.
And if it doesn't say Atera on it, there is usually Atera behind it, because many carrier systems on our roads come from our company. The high functionality, good design and solid manufacturing of Atera products is appreciated by many well-known car manufacturers.)


This means that the carrier and load are secured in a frontal impact at 30 km/h and do not detach from the vehicle. A product that survives such tests has, in addition to the TÜV approval, another characteristic we are concerned with: quality. Moreover: never before has safety looked so good.

3 years warranty

3 years warranty for all Atera products- As an expression of confidence in the quality of our products we have chosen the 3 years manufacturer warranty. This offers you as a user of our devices more performance and safety and at the same time creates a solid basis for a trouble-free use of Atera products. If it should come to a warranty case within these 3 years after purchase of an Atera product, our technical service, as well as our nationwide service partners (surely also in your proximity) provide for a fast repair or even an exchange.

Signo RTD can also be used for commercial applications. The support legs can be ordered in pairs and the support tubes individually. The stable Atera attachments are also available for aluminium profiles.

Roof racks and roof bars