Narrower engine bulkhead insert moves motor 1mm more inside for enhanced rolling traits and enables the pinion gear become set up deeper on motor shaft. CNC-machined aluminum eccentric mounting plate created from premium Swiss 7075 T6 aluminum. The engine is connected to this eccentric mounting dish with the set up then inserted into an integrated motor holder/drivetrain help. The style of this system enables quick and easy engine rotation to modify gear mesh, yet clamp securely only using a single screw. An aluminum eccentric bulkhead insert is available through a cutout in mount and is modified from top for easier gear mesh adjustment. Machined from premium Swiss 7075 T6 aluminum and black colored anodized.