Buy 165/45 R16 Tyres

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165/45 R16 Tyre Dimensions

165/45 R16 is a low-profile tyre common on small cars with aftermarket wheels. The number breakdown is straightforward; 165 is the width in mm, 45 is the aspect ratio with a 74mm sidewall, and R16 is a radial tyre that fits a 16-inch rim with a diameter of 555mm. Most of the sidewall is removed which reduces the dampening of the tyre over bumpy terrain. We have 165/45 R16, including XL variants, at Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 165 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 165 mm (about 74 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 16 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 74.2 mm (2.92 in)
Overall diameter 555 mm (21.8 in)
Circumference 1,743 mm (68.6 in)
Revolutions 923 per mile · 574 per km
Equivalent sizes
SizeOverall diameter
175/50 R15 556 mm · +0.2%
185/45 R15 548 mm · -1.3%
165/35 R17 547 mm · -1.4%
165/55 R15 562 mm · +1.4%
165/40 R17 564 mm · +1.6%
165/50 R15 546 mm · -1.6%