Triple E quotes will provide you with a bespoke quote for corded, motorised and walkalong track layouts.
TRA2801 Scenery carrier for UniTrack and UniBeam, it is similar to the TRA0701 Master Runner but has a central 13 mm hole in the base to accept an M12 fitting. This carrier is mainly used in conjunction with the Scenery carrier bottom TRA8004. The carrier has a Safe Working Load of 50 kg.