Arrma Mega/3S BLX aluminum motor mount set. This optional motor mount set features a 6mm thick aluminum mount that provides additional motor security and heat dissipation for Arrma Big Rock, Granite, Senton, Typhon, and Vorteks models. With this motor mount, you can install motors up to 36 series. A covered composite gear protects the pinion and gears from weather conditions. The package includes one motor mount, one casing, a gear cover, and a flat screw.