The Reactor wheels, released on July 30, 2018, are a collectible item that can be used to customize a player's vehicle. They provide no advantages while in use and are purely cosmetic.
There is a random chance to get them from the Zephyr Crate, or by trading in 5 import items from the same crate. They can also be traded between players.
The Reactor wheels are classified as Exotic rarity.