Rear Double Treugolnik "elka" Herringbone Tires With Armored Disc Cover (3d-printed)
Copper State Models A35-070

These protective discs were not bolted flush to the hub, which caused them to protrude slightly beyond the wheel face, while the inner wheels, as on the real vehicles, remained without armor protection.
This wheel type appears in several period photographs of World War I armored cars, making the set an accurate choice for recreating early wartime vehicles.

Historically, Treugolnik was a leading Russian tire manufacturer before 1917, receiving multiple awards and supplying both civilian and military transport.