Cyclists should wear clothing that will not catch in the wheels, chain or other moving parts of the bicycle. (toronto.ca)
We know that your ebook or book trailer is often just one part of many other moving parts in the publishing process and that they all need to coalesce somehow into a launch date! (brightwing.ca)
In wheel e-motors (Michelin type etc) could do away with what is called transmissions and many other moving parts. (greencarcongress.com)