315/40zr21 Roadking

Roadking 315/40ZR21 — what it is (real-world meaning) Roadking is a budget Chinese tyre brand often sold in large SUV sizes like 315/40ZR21, mainly for luxury SUVs and aftermarket 21-inch rims. This exact size is typically used on: Range Rover / Range Rover Sport BMW X5 / X6 (M Sport wheels) Mercedes GLE / GLS Large custom SUVs