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Eagle F1 (Asymmetric 6)

255/45R21 Y (106)
5.0/5
(2 reviews)
  • 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.

  • A70 dB
    External Noise
    Noise Emission / Exterior Noise: A (70 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
Noise Reduction
  • 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:17-10-2026
Fully Fitted Price
£266.98
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Eagle F1 (Asymmetric 3)

255/45R21 V (106)
5.0/5
(3 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

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

  • B
    Wet Grip
    Wet Grip / Braking Performance: B

    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.

  • A70 dB
    External Noise
    Noise Emission / Exterior Noise: A (70 dB)

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

Noise Reduction
  • 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:17-10-2026
Fully Fitted Price
£270.57
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Eagle F1 (Asymmetric 3) SUV

255/45R21 W (106)
4.8/5
(6 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

    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:17-10-2026
Fully Fitted Price
£275.88
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Premium Contact 6

255/45R21 V (105)
5.0/5
(2 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

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

  • B
    Wet Grip
    Wet Grip / Braking Performance: B

    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.

  • B73 dB
    External Noise
    Noise Emission / Exterior Noise: B (73 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:17-10-2026
Fully Fitted Price
£293.13
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Cross Contact RX

255/45R21 V (106)
4.0/5
(1 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

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

  • B
    Wet Grip
    Wet Grip / Braking Performance: B

    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.

  • B73 dB
    External Noise
    Noise Emission / Exterior Noise: B (73 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:17-10-2026
Fully Fitted Price
£304.38
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Turanza T005

255/45R21 W (106)
4.5/5
(2 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

    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.

  • B70 dB
    External Noise
    Noise Emission / Exterior Noise: B (70 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:17-10-2026
Fully Fitted Price
£307.97
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Eagle F1 Supersport

255/45R21 Y (106)
1.0/5
(1 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

    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.

  • A70 dB
    External Noise
    Noise Emission / Exterior Noise: A (70 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
Noise Reduction
  • 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:17-10-2026
Fully Fitted Price
£312.59
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Pilot Sport EV

255/45R21 W (106)
4.7/5
(6 reviews)
  • A
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: A

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

  • B
    Wet Grip
    Wet Grip / Braking Performance: B

    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.

Great Fuel Efficiency
  • 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:17-10-2026
Fully Fitted Price
£327.70
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Sport Contact 6

255/45R21 Y (106)
4.7/5
(3 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

    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.

  • B73 dB
    External Noise
    Noise Emission / Exterior Noise: B (73 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:17-10-2026
Fully Fitted Price
£332.53
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Pilot Sport 5 Energy

255/45R21 Y (106)
4.6/5
(19 reviews)
  • A
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: A

    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.

  • B73 dB
    External Noise
    Noise Emission / Exterior Noise: B (73 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
Great Fuel Efficiency
  • 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:17-10-2026
Fully Fitted Price
£340.77
product-card-brand-michelin.jpg

Pilot Sport 4 SUV

255/45R21 Y (106)
5.0/5
(3 reviews)
  • 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.

  • 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:17-10-2026
Fully Fitted Price
£352.54
product-card-brand-michelin.jpg

Pilot Sport EV

255/45R21 Y (106)
4.7/5
(6 reviews)
  • B
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: B

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

  • B
    Wet Grip
    Wet Grip / Braking Performance: B

    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.

  • 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:17-10-2026
Fully Fitted Price
£395.32
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EHF508

255/45R21 V (105)
4.7/5
(3 reviews)
  • 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.

  • 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.

  • B73 dB
    External Noise
    Noise Emission / Exterior Noise: B (73 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:17-10-2026
Fully Fitted Price
£123.52
You've viewed 13 of 13 products

255/45 R21 Tyre Reviews

Overall rating4.7/5
Based on 136 reviews
Katy R.
Compared to my previous tyres, they seem to be noisier.
Michelin e.Primacy E1
Aaran Horne
They have been excellent so far. They provide a good grip and likely have great durability.
Michelin e.Primacy E1
Tilda Winder
While I appreciate the recommendation for these tyres, since fitting, I'm now really disappointed due to their lack of grip. When I set off, there's just spinning wheels, no…
Michelin e.Primacy E1
255/45 R21 Tyre Reviews

255/45 R21 Tyre Reviews

4.7/5136 reviews

Showing 11–20 of 136 reviews

About these reviews

Tyre reviews recording 255/45 R21, across tyre brands and tread ranges. Each review identifies its tyre range.

5/5

Michelin e.Primacy E1

The tyres are definitely quieter than the original Michelin EV ones and also have decent mileage. Both these the local garage are notable benefits for an electric vehicle. Since an EV is quiet by nature, any noise from the tyres becomes more noticeable, so it is important to have quieter ones.

Cristiano D.
255/45R21Vehicle recorded: Audi Q4
5/5

Continental Premium Contact 6

I feel more confident on the road with the new tyres because they improve my driving assurance while manoeuvring and while cruising.

5/5

Michelin e.Primacy E1

Excellent performance in both dry and wet weather, reasonably priced online, would highly recommend them.

255/45 R21 Numbers Explained

255/45 R21 is a size for larger wheels on heavier SUVs and Crossovers. The breakdown is like this; 255 is the width in millimetres. 45 is the percentage that represents the sidewall height as compared to the width making it 115mm. R21 means the tyre is radial and fits a 21-inch rim. The sidewall is 115mm and the diameter is 763mm. We sell this size tyre at Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 255 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 255 mm (about 115 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 114.8 mm (4.52 in)
Overall diameter 763 mm (30.0 in)
Circumference 2,397 mm (94.4 in)
Revolutions 671 per mile · 417 per km
Similar sizes
SizeOverall diameter
255/40 R22 763 mm · -0.0%
255/50 R20 763 mm · +0.0%
235/55 R20 766 mm · +0.5%
235/50 R21 768 mm · +0.7%
275/45 R20 756 mm · -1.0%
265/40 R22 771 mm · +1.0%