It is  new carbon fibre A-arm stiffeners which is made for all HB Racing D817, D815 and RGT8 based kits . The CNC-machined add-on plates allow to fine-tune the overall stiffness of the arms depending on the surface traction or ambient temperatures. The stiffeners are available in 1.0mm, 1.2mm or 1.5mm thickness, equaling softer to harder settings, and as complete sets or as separate pairs for the front or rear of the vehicle.

TO-180  Thickness : 1.5mm