Changing seat height on Husqvarna WR 250 is a reasonable request due to being such a tall bike. Lowering 20 to 30 mm and addressing the width can be a great comfort for short riders. Seat cover replacement may not be required when lowering a seat. Often we can refit the same cover.
If you only need a height adjustment. Lower or higher. Ring to see what we can do for you
Comfort options for your WR250 can be discussed on the phone easier than explaining by email.