New from KM Racing for the Mugen MTX-4 are these new lightweight items to mount the O.S. Speed 12XZ engine. First up is this new one piece engine mount that has all the advantages of a monoblock, such as less strain on the crankcase and ease of mounting, yet has been machined for extra weight savings. Also new is the lightweight carbon fibre top deck which thinner by 0.5mm from the previously released version to make it easier to use with the O.S. Speed 12XZ engine.