I'm pretty sure it is a brown, Troxel seat with either leather or fake leather, bee hive like springs and maybe the crash rail. Mine is original and that's what it has. It is possible you could order another seat or maybe they chose what was available like a Persons?
The handle bars are the "longhorn" type I think.... wheels are chrome and not the drop center type..... don't know the official name....
I have pics of mine in here I think...
I will be corrected if I am off.
Wayne