Buy 165/45 R15 Tyres

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AS-1

165/45R15 V (72)
  • D
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: D

    How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.

  • C
    Wet Grip
    Wet Grip / Braking Performance: C

    How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.

  • B71 dB
    External Noise
    Noise Emission / Exterior Noise: B (71 dB)

    How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

  • Tick Icon Car
    Car tyre:

    Designed for cars, rather than vans, 4x4s or commercial vehicles.

  • Tick Icon Reinforced (XL)
    Extra Load or Reinforced tyres:

    A stronger sidewall lets this tyre carry more weight than a standard tyre of the same size. Marked XL on the sidewall.

Fit from:03-09-2026
Fully Fitted Price
£7571
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165/45 R15 Explained

165/45 R15 is a low-profile tyre size typically associated with aftermarket wheels on compact cars, rather than being used as OEM equipment. The first number in the size, 165, is the width of the tyre in mm. The second number, 45, is the sidewall height as a percentage of the width, making the sidewall height 74mm. R15 denotes the size of the rim in inches and the fact that it is a radial tyre. This tyre gives a diameter of 530mm. Tyres with lower sidewalls transmit bumps with less cushioning. Tyres.co.uk stocks this size.

Part of the sizeValueWhat it means
Section width 165 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 45 Sidewall height as a percentage of the width - here, 45% of 165 mm (about 74 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 15 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 74.2 mm (2.92 in)
Overall diameter 530 mm (20.8 in)
Circumference 1,663 mm (65.5 in)
Revolutions 967 per mile · 601 per km
Equivalent sizes
SizeOverall diameter
175/50 R14 531 mm · +0.2%
165/55 R14 537 mm · +1.4%
165/40 R16 538 mm · +1.7%
185/50 R14 541 mm · +2.1%