Metal-gear Drivetrain
With the exception of the spur gear, which is protected by a dual-pad slipper clutch, all the BOM’S gears are metal. Also metal: the Cv-style joints on the telescoping plastic center shafts, so the BOM’S drivetrain should prove rugged. The transmission design is unique; the lower skidplate is actually part of the gearbox, and dual output gears position the center shafts nearly parallel with the chassis rails, so the CV joints don’t have to work as hard. Also clever: The front and rear shafts are counter-rotating, which reduces torque twist.