This information can be found on the sidewall of the tyres, in the vehicle logbook and on the label on the driver's side front door pillar or sometimes in the fuel cap. It will appear in the format - 205/55 R16 91 V. Read more about how to read a tyre.
Legal notices
The load and/or speed ratings displayed may differ slightly from the original size specified on the vehicle label. As a qualified professional, your tyre dealer will be able to advise you in :
1. Informing you if the load and/or speed rating of the replacement tyres is different from the original tyres.
2. Determining whether the tyre pressure should be adjusted for the proposed alternative size