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Vector 4Seasons G3 SUV

235/45R21 T (101)
5.0/5
(5 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.

  • 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.

  • 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.

  • Tick Icon All season
    All season tyres:

    Built to handle both summer and winter conditions, so the same tyres can stay on all year instead of being swapped twice.

Fit from:03-09-2026
Fully Fitted Price
£21287
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Eagle F1 (Asymmetric 3)

235/45R21 T (101)
3.7/5
(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
£22424
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Winter I'cept ION (IW01A)

235/45R21 V (101)
4.7/5
(30 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.

  • 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.

  • A69 dB
    External Noise
    Noise Emission / Exterior Noise: A (69 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.

  • Tick Icon Winter
    Winter tyres:

    Designed for temperatures below 7°C. Summer tyre rubber hardens in the cold and loses grip, while a winter compound stays soft and holds the road in cold, wet and snowy conditions.

Fit from:03-09-2026
Fully Fitted Price
£22439
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Scorpion Elect

235/45R21 T (101)
5.0/5
(1 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.

  • A69 dB
    External Noise
    Noise Emission / Exterior Noise: A (69 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
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:03-09-2026
Fully Fitted Price
£22828
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All Season Contact 2

235/45R21 T (101)
5.0/5
(2 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.

  • 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.

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.

  • Tick Icon All season
    All season tyres:

    Built to handle both summer and winter conditions, so the same tyres can stay on all year instead of being swapped twice.

Fit from:03-09-2026
Fully Fitted Price
£23628
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Sport Contact 6

235/45R21 Y (101)
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:03-09-2026
Fully Fitted Price
£24911
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Eco Contact 6Q

235/45R21 T (101)
4.0/5
(1 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:03-09-2026
Fully Fitted Price
£25318
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Premium Contact 7

235/45R21 T (104)
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.

  • 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:03-09-2026
Fully Fitted Price
£25732
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Pilot Sport 5 Energy

235/45R21 Y (101)
5.0/5
(1 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.

  • 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
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:03-09-2026
Fully Fitted Price
£26408
product-card-brand-michelin.jpg

Pilot Sport 4 SUV

235/45R21 Y (101)
4.0/5
(4 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.

  • 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:03-09-2026
Fully Fitted Price
£27706
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e.Primacy

235/45R21 W (97)
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.

  • 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.

  • B69 dB
    External Noise
    Noise Emission / Exterior Noise: B (69 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.

Fit from:03-09-2026
Fully Fitted Price
£28499
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UltraGrip Performance+ SUV

235/45R21 T (101)
5.0/5
(1 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.

  • 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.

  • Tick Icon Winter
    Winter tyres:

    Designed for temperatures below 7°C. Summer tyre rubber hardens in the cold and loses grip, while a winter compound stays soft and holds the road in cold, wet and snowy conditions.

Fit from:03-09-2026
Fully Fitted Price
£30431
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Turanza 6

235/45R21 T (101)
5.0/5
(2 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.

  • A69 dB
    External Noise
    Noise Emission / Exterior Noise: A (69 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
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:03-09-2026
Fully Fitted Price
£31466
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Passion P9S

235/45R21 W (101)
5.0/5
(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:03-09-2026
Fully Fitted Price
£10935
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235/45 R21 Measurements

235/45 R21 is a large size used on crossovers, and higher end vehicles. The numbers show that this size is 235mm in width, with a sidewall height of 45% of 235mm which is equal to 106mm. This is a radial tyre on a 21-inch rim with an overall diameter of 745mm. The 106mm sidewall cushions road joints on the Volkswagen ID.4. We have 235/45 R21 on Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 235 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 235 mm (about 106 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 105.8 mm (4.16 in)
Overall diameter 745 mm (29.3 in)
Circumference 2,340 mm (92.1 in)
Revolutions 688 per mile · 427 per km
Equivalent sizes
SizeOverall diameter
235/50 R20 743 mm · -0.3%
255/45 R20 738 mm · -1.0%
255/40 R21 737 mm · -1.0%
255/35 R22 737 mm · -1.0%
245/50 R20 753 mm · +1.1%
245/45 R21 754 mm · +1.2%