However, in recent times, most manufacturers employed this design for its cost-effectiveness. So, this type of frame is perfect for manufacturers that make motorcycles in comparatively small numbers such as start-up companies. It neither requires hefty investment nor huge expenditure for manufacturing. However, it only requires a simple jig and a skilled technician. The process for the construction of a trellis frame is more complicated than an alloy beam frame. Most modern naked street bikes and sports bikes make use of the trellis type frame. Hence, it costs more to manufacture this type of frame than a cradle frame.ĭue to its overall low weight, manufacturers prefer this frame over other designs. As a result, the engine also needs to be reinforced. This is mainly on account of the use of the engine to carry out the structural duties. KTM 390 Duke (Courtesy: KTM) Advantages:įurthermore, the advantage of the trellis type frame is that it has a lower weight than the cradle type. As a result, the placement of engine & components becomes easier and gives better access for servicing and maintenance. A well-designed frame provides a strong, lightweight structure. The engine is considered a part of the frame itself and further raises its rigidity. This means that the engine equally endures the stress just like the other tubes in the frame. The engine also acts as a stressed member. In this design, the engine attaches below the frame. These pieces are welded together to form the mesh-like frame structure. Manufacturers typically fabricate a trellis frame by using small, round or oval-shaped metal tubular pieces. It uses numerous metal tubes welded together in a triangular construction. Design Construction:Ī trellis frame connects the steering head to the swing-arm pivot directly. This chain of triangles gives this frame high strength and stiffness required to withstand various forces. Manufacturers use either steel or aluminum to make these triangles. As the name suggests, the trellis frame contains a number of small straight tubes welded together in numerous ‘triangles’.
The word ‘ trellis‘ means a mesh or framework.
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