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The 305/40 R21 tyre has the following characteristics: a width of 305, a height of 40 and a diameter of 21 inches. These dimensions exist for summer tyres and winter tyres.
These tyre dimensions are suitable for vehicles in SUVs categories.
See our selection of 305/40 R21 tyres below, including indications of fuel consumption, adhesion on wet ground and external road noise.

  • Favorites
    Car Tyre Michelin Pilot Alpin 5 SUV
    See product data sheet

    Michelin Pilot Alpin 5 SUV

    305/40 R21 113 V
    • XL
    • NC0
    • XL: Reinforced tyres. Have a higher load index.
    • NC0: Porsche approved tyres (Cayenne).
    4x4 road tyres Winter
    • C
      Fuel consumption
    • D
      Wet grip
    • 73dB
      External noise in decibels
    • In stock
    • 4 to 5 working days
    £307 ⁠38
    /Delivered Tyre
    Rate this tyre
  • Top brand recommended
    Car Tyre Pirelli Scorpion Winter 2
    See product data sheet

    Pirelli Scorpion Winter 2

    305/40 R21 113 V
    • XL
    • NC0
    • XL: Reinforced tyres. Have a higher load index.
    • NC0: Porsche approved tyres (Cayenne).
    4x4 road tyres Winter
    • B
      Fuel consumption
    • A
      Wet grip
    • 72dB
      External noise in decibels
    • In stock
    • 4 to 5 working days
    £404 ⁠23
    /Delivered Tyre
    £396 ⁠15
    with
    ★★★★★
    (Reviews: 5)
  • Car Tyre Michelin Pilot Alpin 5 SUV
    See product data sheet

    Michelin Pilot Alpin 5 SUV

    305/40 R21 113 V
    • XL
    • NC0
    • XL: Reinforced tyres. Have a higher load index.
    • NC0: Porsche approved tyres (Cayenne).
    4x4 road tyres Winter
    • C
      Fuel consumption
    • D
      Wet grip
    • 73dB
      External noise in decibels
    • In stock
    • 4 to 5 working days
    £307 ⁠38
    /Delivered Tyre
    Rate this tyre
  • Car Tyre Pirelli Scorpion Winter 2
    See product data sheet

    Pirelli Scorpion Winter 2

    305/40 R21 113 V
    • XL
    • NC0
    • XL: Reinforced tyres. Have a higher load index.
    • NC0: Porsche approved tyres (Cayenne).
    4x4 road tyres Winter
    • B
      Fuel consumption
    • A
      Wet grip
    • 72dB
      External noise in decibels
    • In stock
    • 4 to 5 working days
    £404 ⁠23
    /Delivered Tyre
    £396 ⁠15
    with
    ★★★★★
    (Reviews: 5)

305/40 R21 car tyres
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Speed index
For winter tyres, the speed rating can be lowered to 2 ratings below the original (unless otherwise specified by the maker).
Inversely, for all tyres, you can fit tyres with speed ratings higher than the original ones if necessary.
Load index
You can fit tyres with a load index higher than that of your original tyres.
Vehicle / usage
Characteristics

Price
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Grip on wet surface
Measure the impact of a vehicle's wet grip
Fuel consumption
Measure the impact of a tyre's rolling resistance on a vehicle's fuel efficiency
Noise
Measure a tyre's external rolling noise (expressed in decibels) - this is not the tyre noise audible inside a vehicle
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