Tire Size Guide

255/40R21 Tires

39 tires availableFrom $134$597 per tire

255

Width (mm)

40

Aspect Ratio

21"

Rim Diameter

Vehicles Using 255/40R21

+ 9 more vehicles use this size

Shop This Size by Category or Brand

All 255/40R21 Tires

Atturo AZ850performance

The Atturo AZ850 is perfect for drivers who want maximum dry grip and handling for performance-focused driving. However, its wet grip score is a significant drawback, making it less suitable for areas with frequent rain.

The Turanza 6 is a solid choice for drivers prioritizing comfort and low noise on long trips. However, its low treadwear rating and absence of a warranty could make it less appealing for those seeking longevity.

0Treadwear 320Traction A

The Alenza Sport A/S is well-suited for drivers who value dry grip and handling responsiveness, with a high treadwear rating that suggests longevity. However, its wet grip and comfort scores may not meet the needs of those prioritizing a smoother, quieter ride in all conditions.

0Treadwear 500Traction A

The EcoContact 6Q is a good choice for drivers who value comfort and low noise levels on long drives. However, its lack of a treadwear warranty and lower treadwear rating compared to category norms might deter those looking for a longer-lasting tire.

0Treadwear 320Traction A

The ContiSportContact 5P is best suited for drivers who demand top-tier dry and wet grip along with exceptional handling capabilities. However, its moderate comfort and noise levels, along with no treadwear warranty, might deter those seeking a more balanced everyday tire.

0Treadwear 240Traction AA

The ContiSportContact 5 is best for performance enthusiasts who value high grip and handling precision in summer conditions. However, the absence of a treadwear warranty might be a drawback for those concerned about tire lifespan.

0Treadwear 280Traction AA

The CrossContact RX suits highway commuters seeking comfort and quietness in their daily drives. However, the absence of a treadwear warranty and lower treadwear rating might deter buyers focused on long-term durability.

0Treadwear 480Traction A

The Potenza Sport is perfect for drivers who prioritize dry and wet grip along with exceptional handling. However, its lower comfort and noise scores may not suit those looking for a more refined daily driving experience.

0Treadwear 300Traction AA

FAQ

What does 255/40R21 mean?
255/40R21 breaks down as follows: 255mm is the tire's section width (the widest point), 40 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 21 is the wheel diameter in inches.
What vehicles use 255/40R21 tires?
255/40R21 is a common fitment for vehicles like the 2026 Genesis GV70, 2025 BMW i7, 2025 BMW 750e xDrive, 2025 Kia EV6 and others. Always confirm your specific trim's fitment before purchasing.
How much do 255/40R21 tires cost?
255/40R21 tires range from $134 to $597 per tire. Budget brands start under $140, while premium options can exceed $500. Compare options above for the best price for your needs.

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