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Below is is a tyre conversion chart that show different size options you could possibly change your tyre size to but ensuring you keep the Rolling Road Circumference similar.
The chart could be used for many different vehicle manufacturers if your were thinking of putting after market or replica alloys and going up in the size rim used.
Basically how it works is that any tyre on the same horizontal chart line should all have a similar Rolling Road Circumference
| 155/65/13 | 185/55/13 | 185/50/14 | 195/45/14 | 195/45/15 | 195/40/16 | |
|---|---|---|---|---|---|---|
| 175/60/14 | 185/55/14 | 195/45/15 | 195/40/16 | 205/40/16 | 195/45/16 | |
| 205/65/15 | 225/55/16 | 235/45/17 | 235/40/18 | 265/35/18 | 245/35/19 | 275/30/19 |
| 185/60/14 | 195/50/15 | 215/50/15 | 215/40/16 | 195/45/16 | 195/40/17 | 205/40/17 |
| 195/60/14 | 195/55/15 | 205/50/15 | 205/45/16 | 205/40/17 | 215/35/18 | 225/35/18 |
| 195/60/15 | 205/50/16 | 215/40/17 | 215/35/18 | 225/35/18 | 215/35/19 | 225/35/19 |
| 205/60/15 | 205/55/16 | 225/45/17 | 225/40/18 | 255/35/18 | 235/35/19 | 265/30/19 |
| 225/55/17 | 235/50/18 | 245/45/18 | 245/40/19 | 275/35/19 | 245/35/20 | 285/30/20 |
| 275/55/17 | 255/55/18 | 285/50/18 | 255/50/19 | 275/40/20 | 265/35/22 | 295/30/22 |
| 275/60/17 | 285/55/18 | 255/55/19 | 265/50/20 | 275/45/20 | 295/45/20 | 285/35/22 |
This chart should be used as a guide only, always consult your wheel and tyre supplier before purchasing to ensure the correct tyre size conversion has been given and is compatible with your vehicle, Modifications to the vehicle may be required.
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