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Eagle F1 (Asymmetric 5)

245/30R21 Y (91)
5.0/5
(3 reviews)
  • 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.

  • 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:03-09-2026
Fully Fitted Price
£27533
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Pilot Sport 4 S

245/30R21 Y (91)
5.0/5
(3 reviews)
  • 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.

  • 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:03-09-2026
Fully Fitted Price
£34012
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AS-2+

245/30R21 Y (91)
4.0/5
(1 reviews)
  • 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.

  • 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:03-09-2026
Fully Fitted Price
£18911
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245/30 R21 Size Guide

245/30 R21 is a low profile tyre used on high performance saloons and SUVs with 21-inch wheels. It has a width of 245mm. Because the number is 30, the section height is 30% of 245mm, so the sidewall height is 74mm. R21 means the tyre is of radial construction and fits a 21-inch rim. This gives the tyre an overall diameter of 680mm. Since the sidewall height is 74mm, the sidewall flexes less when turning. Tyres.co.uk stocks this size including the XL versions.

Part of the sizeValueWhat it means
Section width 245 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 30 Sidewall height as a percentage of the width - here, 30% of 245 mm (about 74 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 73.5 mm (2.89 in)
Overall diameter 680 mm (26.8 in)
Circumference 2,138 mm (84.2 in)
Revolutions 753 per mile · 468 per km
Equivalent sizes
SizeOverall diameter
245/35 R20 680 mm · -0.1%
235/30 R21 674 mm · -0.9%
255/30 R21 686 mm · +0.9%
255/35 R20 686 mm · +0.9%
225/40 R20 688 mm · +1.1%
235/35 R20 672 mm · -1.2%