Thank you for your interest and usage in the Intake System Kit. This kit is an unassembled group of parts that can be used to intake objects into a robot. The intake is nonspecific to any particular game object for the FIRST Robotics Competition. An exploded view in PDF form is available to show how components attach to the intake mount brackets. This kit can be customized in numerous ways to fit any number of intake needs, as such no assembly directions are given. No method for sprocket or hub attachment is provided as sprockets and hubs were not included in the design. We will look into the items you mentioned as improvements for this part.