This size is most commonly associated with premium SUVs that run 23-inch wheels, including certain Range Rover Sport specifications with factory or approved 23-inch packages. Fitment can also appear on similar luxury SUV wheel upgrades. Always confirm the exact size, load index, and speed rating on the vehicle placard or in the handbook before ordering.

Match the load index and speed rating shown on your current tyres or the vehicle placard, and do not go below the manufacturer requirement. Many 23-inch SUV fitments require higher load ratings due to vehicle weight, so check for reinforced or XL markings where specified. If you are unsure between two options, choose the one that meets the required rating and matches your axle setup.

Yes, 255/40 R23 is available in summer patterns for maximum warm-weather grip, winter tyres for improved traction in cold conditions, and all-season tyres for year-round convenience. Because the sidewall is relatively low in this size, tread design and compound choice can make a noticeable difference to ride and wet braking. Pick the type that best matches your mileage, region, and typical temperatures.

Mixing brands or tread patterns is best avoided, especially on performance-focused SUVs where stability systems are sensitive to grip differences. If you need to replace just two tyres, fit the same make and pattern as the remaining pair when possible, and always keep matching tyres across the same axle. If your vehicle uses a staggered setup, follow the manufacturer sizes front to rear exactly.

Use the vehicle manufacturer’s recommended pressures from the door jamb label or handbook, as they account for vehicle weight and intended loads. Pressures can differ between front and rear and may have separate settings for light load versus fully laden driving. Check pressures when tyres are cold, and recheck after fitting new 255/40 R23 tyres to maintain even wear and consistent handling.