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BluEarth-A AE50

185/45R17 H (78)
4.4/5
(27 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.

  • B68 dB
    External Noise
    Noise Emission / Exterior Noise: B (68 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:18-10-2026
Fully Fitted Price
£128.34
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185/45 R17 Tyre Reviews

Overall rating4.4/5
Based on 27 reviews
Eddie Sharpe
I really like these tyres; they grip the road really well.
Yokohama BluEarth-A AE50
Albert H.
Very good in the rain!
Yokohama BluEarth-A AE50
Reza Artliff
Due to the recent covid lockdown, I have not been able to drive much so it is a bit too early to provide a proper assessment. There have been no problems so far. The road noise is…
Yokohama BluEarth-A AE50
185/45 R17 Tyre Reviews

185/45 R17 Tyre Reviews

4.4/527 reviews

Showing 11–20 of 27 reviews

About these reviews

Tyre reviews recording 185/45 R17, across tyre brands and tread ranges. Each review identifies its tyre range.

5/5

Yokohama BluEarth-A AE50

Great tyres. I drive mainly on motorways, and they hold the road really well, even when it is wet. I believe they are actually better than the Continentals I had previously.

3/5

Yokohama BluEarth-A AE50

The tyres perform extremely well, but there is a design flaw: there are no rim protectors on the inner and outer sidewalls. I have never scraped rims in my four decades of driving, but now I have. Even when you remove a wheel and set it down, the rim goes down first. And these tyres are without a doubt the correct profile for the wheels. It's ridiculous!

5/5

Yokohama BluEarth-A AE50

In the rain and cold conditions the tyres are performing really well. I've done around 1500 miles and everything has been problem free.

3/5

Yokohama BluEarth-A AE50

Great gripping ability in wet conditions. Although I would say they are a bit firmer than the Goodyears they replaced, I'd still recommend them.

What Does 185/45 R17 Mean?

185/45 R17 tyres are found on Smart cars, especially the Brabus fortwo and forfour models and on Renault's Twingo GT. The digits are easy to understand. 185 means the width in mm, 45 indicates the aspect ratio, meaning the sidewall is 45% of 185mm, which gives an 83mm sidewall for the front while these rear-engine cars have a wider rear tyre, and R17 refers to a 17-inch radial tyre. This brings the overall diameter to 598mm. We have 185/45 R17 at Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 185 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 185 mm (about 83 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 17 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 83.2 mm (3.28 in)
Overall diameter 598 mm (23.6 in)
Circumference 1,880 mm (74.0 in)
Revolutions 856 per mile · 532 per km
Similar sizes
SizeOverall diameter
205/40 R17 596 mm · -0.4%
195/50 R16 601 mm · +0.5%
185/50 R16 591 mm · -1.2%
205/45 R16 591 mm · -1.2%
195/45 R17 607 mm · +1.5%
195/40 R17 588 mm · -1.8%