The kit includes a front 8mm motor mount stud bolt. With the motor mount stud, you can easily install complicated and bigger down tubes. You can easily make installations without the need to drill the frame. 

The front motor mount stud holds the front mount easily for any motorized bicycle engine. The mount can be made for a 66/80cc or a 48cc bicycle engine. The installation of the front motor mount stud may require some other crucial installation tool. Before making the purchase confirm the price to check if this is the same thing, you are looking for.

 Part #16 on the Crankcase Diagram

Part Number (See Parts Manual): 2-37