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Comfort II

175/70R12 T (80)
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.

  • 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.

  • 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.

Great Value
  • Tick Icon Car
    Car tyre:

    Designed for cars, rather than vans, 4x4s or commercial vehicles.

Fit from:02-09-2026
Fully Fitted Price
£5426
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175/70 R12 Tyre Measurements

175/70 R12 is a small wheel size common on older cars and trailers. It's 175 because that's the tyre width in mm. 70 is the aspect ratio; the sidewall will be 70% of 175mm which works out to 122mm. R12 means that it's a radial tyre on a 12-inch rim resulting in an overall diameter of 550mm. The taller sidewall gives you some cushioning over bad roads. We have 175/70 R12, including C-marked versions, at Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 175 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 70 Sidewall height as a percentage of the width - here, 70% of 175 mm (about 122 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 12 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 122.5 mm (4.82 in)
Overall diameter 550 mm (21.6 in)
Circumference 1,727 mm (68.0 in)
Revolutions 932 per mile · 579 per km
Equivalent sizes
SizeOverall diameter
185/60 R13 552 mm · +0.4%
155/70 R13 547 mm · -0.5%
155/80 R12 553 mm · +0.5%
165/65 R13 545 mm · -0.9%
175/65 R13 558 mm · +1.4%
175/60 R13 540 mm · -1.7%