I had someone ask about the modifications for taller riders, or riders who wanted their feet extended more. The seat can be put in a higher position by using spacer rings provided with the TravelScoot.
The top picture on the left is a picture of a modification Hardy can make to a scoot to extend the footrest by about two inches.
The second photo is my attempt to explain what you're seeing in the first picture.
If you have questions, please ask. If you'd like to see larger versions of the pictures, they are at: