Tire Scouter

255/40R23 tires

Compare 2 models made in this size across 2 categories, ranked by spec score, then confirm fitment for your vehicle.

Spec scores are estimates from five manufacturer specs, not road tests. How we score

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Our top pick in 255/40R23

Pirelli P Zero (PZ4)

  • Ultra high performance summer

Best for drivers in wet climates.

The Pirelli P Zero (PZ4) is well-suited for drivers who prioritize wet grip in their ultra high performance summer tires.

  • Wet grip score of 9 exceeds the ultra high performance summer category average of 7.6, making it a strong performer in rainy conditions.
  • Dry grip and handling both score 8, which aligns well with the category's focus on performance driving.
  • Comfort and noise scores match the category averages, ensuring a balanced ride for an ultra high performance tire.
Full analysis

The highest spec score among ultra high performance summer tires in this size that we have analysis for, the most common category for 255/40R23.

79Strong
None listed
280
AA
Y · 186 mph

Every scale below runs from the lowest to the highest spec score among the 1 scored tires in 255/40R23 (79 to 79).

Best ultra high performance summer tires in 255/40R23

1 model, highest spec score first.

All ultra high performance summer tires

  1. Pirelli P Zero (PZ4)

    Best for drivers in wet climates.

    79StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    280
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Wet grip score of 9 exceeds the ultra high performance summer category average of 7.6, making it a strong performer in rainy conditions.
    • Dry grip and handling both score 8, which aligns well with the category's focus on performance driving.
    • The lack of a treadwear warranty could be a concern for buyers looking for a guaranteed lifespan from their performance tires.

Best winter tires in 255/40R23

1 model, highest spec score first.

All winter tires

  1. Pirelli P Zero Winter

    Severe-snow rated

    Best for drivers in moderate winter climates.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    H · 130 mph
    • Snow traction score of 8 is solid, making it reliable in typical winter conditions.
    • Comfort score matches the category average of 6.2, providing a balanced ride for a winter tire.
    • The lack of a treadwear warranty and below-average wet grip make it less suitable for those driving frequently on wet winter roads.

Vehicles that use 255/40R23

A sample of recent vehicles whose factory front size is 255/40R23. Sizes can vary by trim, so confirm yours before you buy.

  • 2025 Rolls Royce Spectre
  • 2024 Rolls Royce Spectre

Popular brands in 255/40R23

The number beside each brand is how many of its models come in this size.

What 255/40R23 means

255/40R23 designates a tire 255 mm (10.0") wide with a sidewall 40% as tall as it is wide — about 102 mm (4.0") — mounted on a 23-inch wheel. That works out to an overall diameter of roughly 31.0", a circumference of about 97.5", and approximately 650 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

Of the 2 255/40R23 tire models we track, the most common category is ultra high performance summer (1 model), followed by winter (1) — a good indicator of the kind of vehicles and driving this size is designed for.

Sidewall height
102 mm
Overall diameter
31.0 in
Circumference
97.5 in
Revs per mile
650

Frequently asked questions

What does 255/40R23 mean?

255/40R23 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 23 is the wheel diameter in inches.

What vehicles use 255/40R23 tires?

255/40R23 is a common fitment for vehicles like the 2025 Rolls Royce Spectre, 2024 Rolls Royce Spectre. Always confirm your specific trim's fitment before purchasing.

How tall is a 255/40R23 tire?

A 255/40R23 tire has a sidewall height of about 102 mm (4.0") and an overall diameter of roughly 31.0", turning approximately 650 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

255/40R23 research guides

Summer vs all-season tires

Where summer tires lose grip, the cold-cracking risk, and what all-season tires trade for their range.

Read the guide

Speed rating chart

A practical chart for common tire speed ratings and what they mean for everyday driving.

Read the guide

Changing tire size

Plus-sizing and alternate sizes: diameter limits, load and speed ratings, and speedometer error.

Read the guide

Confirm 255/40R23 fits your vehicle

Wheel size can vary by trim and option package. Enter your year, make, model, and trim to verify fitment before you order.

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