Do you know what is 3% size up ?

City just a small car, so simply put on wider & higher wall ratio tyre would just expect higher wear & tear, higher fuel consumption.

Bearbear wong simply increase the width & wall heigh which most probably over 3% ratio, this will cause his meter to give inaccurate reading.

He should instead use V specs tyre size which is inch up but reduced tyre height & still within 3% for better handling.

195/65/15 is not suitable to replace 175/65/15.

As is 634.5 vs ori tyres 608.5 which 9.6% size up.

He should use 185/55/16 which is 609.9 aka 1%

Learn something today ?? Boy2