Here is how to understand these elements:
225: Tyre nominal section width in mm. This is roughly the width of the tyre tread.
45: aspect ratio, in percentage form, of the height of the tyre to the width of the tyre. In this example, 45 indicates the height of the tyre and is equal to 45% of the width.
R or ZR: radial structure
17: nominal rim diameter in inches. This corresponds to the diameter of the wheel the tyre is designed to fit. Also known as rim size.
96: Load capacity index. The maximum load that can be supported by each tyre.
V: Speed index. the maximum speed capability of the tyre. In this example, the V is 240 km/h
The dimensions of your winter tyres or all season tyres must match those of your summer tyres, and the load index must be the same or higher. If you opt for a Wheel + Tyre package, you might be able to save money by choosing a smaller size—just make sure to check what is approved for your vehicle. You can also choose a slightly lower speed rating, which is better adapted for winter driving and generally less expensive. Again, check with your dealer to make sure you get the best option.
Use our tyre selector to explore the MICHELIN All Seasons line.