Buy 275/25 R21 Tyres

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SportContact 6

275/25R21 Y (92)
  • 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.

  • A
    Wet Grip
    Wet Grip / Braking Performance: A

    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.

  • B72 dB
    External Noise
    Noise Emission / Exterior Noise: B (72 dB)

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

Wet Grip Excellence
  • 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:16-11-2026
Fully Fitted Price
£332.53
product-card-brand-michelin.jpg

Pilot Sport 4 S

275/25R21 Y (92)
  • C
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: C

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

  • A
    Wet Grip
    Wet Grip / Braking Performance: A

    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.

Wet Grip Excellence
  • 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:16-11-2026
Fully Fitted Price
£378.56
You've viewed 2 of 2 products

Your 275/25 R21 Tyre Options

  • 2summer tyres
  • AEU wet grip
  • 71–72EU road noise (dB)

The quietest in this size is the Michelin Pilot Sport 4 S, at 71 dB.

Load and speed ratings on sale

RatingMax load per tyreTop speedTyres
92Y630 kg186 mph2

275/25 R21 Size Guide

Tyres.co.uk stocks 275/25 R21 tyres. 275mm is the width. 25 is the sidewall aspect ratio, so the sidewall is 25% of 275mm, or 69mm. R21 is for a radial tyre that fits a 21-inch rim, which gives an overall diameter of 671mm. A sidewall this short gives sharp, precise steering, with a firmer ride over broken roads.

Part of the sizeValueWhat it means
Section width 275 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 25 Sidewall height as a percentage of the width - here, 25% of 275 mm (about 69 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 21 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 68.8 mm (2.71 in)
Overall diameter 671 mm (26.4 in)
Circumference 2,108 mm (83.0 in)
Revolutions 764 per mile · 474 per km
Similar sizes
SizeOverall diameter
235/40 R19 671 mm · 0.0%
315/30 R19 672 mm · +0.1%
195/55 R18 672 mm · +0.1%
215/50 R18 672 mm · +0.2%
235/35 R20 673 mm · +0.2%
265/40 R18 669 mm · -0.3%