Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Firerider Treads Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Firerider Treads suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Firerider Treads is part of the transmog set White Tiger Battlegear (Paladin only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 90445 (90440 to 90450) were usually added in the same batch as Firerider Treads: the same quest line, zone, vendor or reward set.