The Pride Victory 10 LX scooter is available with an 18" or 22" wide seat. With the 18" wide seat, the seat plate mechanism allows the seat to slide forward or backwards about 2" just as a car seat does.
The 22" seat does not include such an adjustment however. The 22" seat can be slid back 1". To do this, you would remove the seat and turn it upside down. Then, remove the screws fastening the seat plate to the seat. Relocate the seat plate to the other set of mounting holes and replace the screws.