225/45 R17 Tyres: Which Cars Use This Size and Why?

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 by Chesca D
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Chesca D is a Content & Editorial Coordinator at Tyres.co.uk and is responsible for researching, coordinating, and producing accurate, up-to-date tyre guidance for our Knowledge Hub.
Each article is created using manufacturer specifications, recognised industry standards, and current UK regulations, and is reviewed internally to ensure clarity and technical accuracy. Content is updated regularly to reflect changes in tyre laws, safety guidance, and product specifications.
Fact-checked by the Tyres.co.uk editorial team
Published May 19, 2026
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Tyre size plays a bigger role in your driving experience than you might think.

Not only does the load index and speed rating directly correlate with how fast your vehicle can drive and the weight it can carry, but the width of the tyres, the height of the sidewall, and the diameter of the wheel rim all impact performance, safety and comfort.

Suffice to say, selecting the right tyre size is as much about staying safe and in-control on the road as it is about optimising your performance.

Which is why being able to identify and interpret the size of your own vehicle’s tyres is so important.

Where to Find Tyre Size

Tyre size can be found printed on the sidewall of the tyre. It presents as a series of numbers and letters, each of which tells you something different about the tyre – from its width and diameter to specific functional benefits and design features.

The recommended tyre size for a vehicle will also be found in the vehicle handbook, if you are unsure whether the existing tyres fitted to your car are the right ones.

What Does 225/45 R17 Mean?

Being able to spot the tyre size calculation is all very well but knowing how to interpret the different components is something else entirely.

In this instance, the calculation tells you the width of the tyre, the aspect ratio between tyre width and sidewall height, and the diameter of the wheel rim onto which the tyre is fitted. Matching all of these components ensures that your tyres are the right size for the vehicle’s wheels, with varying sidewall heights and widths impacting performance, handling, comfort and stability.

  • 225 = the tyre width in mm
  • 45 = the sidewall height as a ratio of the tyre’s width
  • R17 = rim diameter of the wheel rim

While not the most commonly used tyre size in the UK market, this particular size is up there as one of the most popular – specifically among luxury vehicle owners and those seeking a sleeker and more sporty aesthetic on their vehicle. And here’s why…

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What Are the Benefits of This Tyre Size for Drivers?

In comparison with the most common tyre size on the market – 205/55 R16 – this particular size is slightly wider but has a lower sidewall height. This means that the tyres, and therefore the base of the car body, sit slightly closer to the ground, while the wider tyre footprint balances the sporty look with enhanced grip.

Other benefits of this popular tyre size include:

  • The wider composition which optimises grip across a multitude of surfaces and terrains
  • A sporty look which is coveted by many vehicle owners
  • Versatility across different conditions and vehicle types
  • Improved handling and therefore more responsive performance

Not to mention, because this tyre size is among the most popular on the market, it is widely available across most tyre brands – from budget options right up to the premium brands and manufacturers.

Which Cars Are Fitted With 225/45 R17 Tyres?

We’ve already touched on the link between these tyres and sports cars. But what other car makes and models opt for the 225/45 R17 tyres as standard?

This tyre size is often associated with luxury vehicles, large and more comfortable sedans, and sports cars – balancing the sporty aesthetic with the consistency and safety of everyday tyres. These are not the most aggressive sports tyres on the market, instead providing a middle ground for those who want to give their vehicle a luxury look while also prioritising superior handling and driver comfort.

Some of the main car makes and models that lean on this tyre size as their original fitment include:

TOP TIP: If you’re not sure what tyre size to opt for, check the sidewall of the existing tyres on your car and choose the same tyre size again. Alternatively, seek expert advice if you want to adjust the driving experience and performance of your vehicle.

You can find tyres in this specific size range and a whole host of other sizes, over on our individual tyre brand pages. Or why not check out our other blogs and articles on tyre size and how to find the right fitment size for you.

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