Knowing the tyre size of your vehicle is handy, and when it comes to buying the right space saver it's essential. Some people think the wheel size is what matters but it's the tyre size that we need to work out the correct space saver for your vehicle. 

So first up, HOW to find it. Then, when you do, you need to be able to understand it! It's not as complex as it sounds and here is the Motornuts guide to getting it right..

You may have never even looked properly at your tyres; most people think that as long as they're not flat or bald then everything's fine. A closer look will reveal your tyre size as it's usually printed right there on the side. To the uninitiated, it looks like a tangled jumble of figures but everything has a specific meaning.

As an example, let's say you look for your vehicle's tyre size and see something like this: 205/­55/­R16/­91/­V. Here's how it breaks down:

• The first number (205 in this example) is the width of the tyre in millimetres 
• The next number refers to the height of the tyre's sidewall, expressed as a percentage of the width. This number is also known as the 'aspect ratio' or 'tyre profile'. Lower profiles give greater control and handling but can mean a harder ride. If going to a lower profile with the same size tyres, speedometer readings will be affected and it is important to rectify this problem
• The next figure is preceded by the letter 'R', which stands for rim. The number itself refers to the diameter of the tyre's inner rim, expressed in inches
• Following this is another number (in this case 91) which refers to the load rating of the tyre
• The final letter represents the speed rating, which is the maximum speed recommended for the tyre at full load. The lettering system is somewhat bizarre and comprises, in order; N, P, Q, R, S, T, U, H, V, Z, W, Y. The higher up in this list indicates a higher maximum speed.

The space saver wheels we sell from RoadHero solve a genuine problem with as many as two thirds of new cars not coming with spare wheels or space savers but repair kits instead and we find that most drivers prefer the peace of mind of having a traditional spare.

The RoadHero kits are specific to different vehicles make, model and year. If you cannot find your vehicle in our listings please contact our team for help.