About 305/40R21 Tires

305/40R21 tires are a large fitment commonly found on sedans, SUVs, and light trucks. The 305mm tread width paired with a 40% aspect ratio gives a sidewall height of 122mm, balancing ride comfort with handling response.

The 21-inch wheel diameter is one of the most common fitments on modern vehicles, making 305/40R21 a widely stocked size with strong availability across retailers.

Treddur is currently tracking 4 listings for 305/40R21 tires. Prices range from $174.66 to $557.33 depending on brand and retailer.

When comparing 305/40R21 tire prices, check that the load index and speed rating match your vehicle's requirements. All-season tires in this size typically carry a higher mileage warranty than performance-oriented options.