Steel trellis frames have been an unmistakable part of KTM’s identity over the decades and have become a staple part of the production bike portfolio after years of learning and success on racetracks around the world. The steel component allows the perfect amount of strength and flex with the minimum of material compared to aluminium concepts. This trellis frame structure connects the steering head to the swingarm pivot as directly as possible using metal tubing arranged in triangulated reinforcement, often with the engine as a stressed member of the chassis to reduce weight and generate a special handling sensation. A trellis frame is typically constructed of round or oval section metal tubular segments with lattice girder principles that are welded or brazed together. A well-designed trellis frame should provide a strong, lightweight structure that simplifies placement of engine & components, and gives good access for maintenance.