It Is A Special Motor Mount For The High-Mount Motor YD-2S. Made Of Aluminum With A Heat Sink Shape, It Has High Cooling Effect And Efficiently Cools The Motor During Heat-Intense Drifting. Additionally, It Comes With A Dedicated Stay That Can Attach A 30mm Square Cooling Fan. By Preparing A Separate Cooling Fan For Motor Cooling, Even Higher Cooling Effect Can Be Achieved.