Have a look on this
Standard tire size for passo is 155/80/R 13 where( 1 inch is equal to 25.4 mm).
Maths Summary:
Multiply a tire’s width by the aspect ratio to get aspect height (155 x 0.80 = 124mm)
Convert into inches (124 mm / 25.4 = 4.881)
Double the aspect height (4.881 x 2 = 9.763)
Add inside diameter of tyre (9.763 + 13 = 22.763)
So after doing lit bit calculations I have finally reached on the following results.
Standard size 155/80/13 (22.76) v/s 175/70/13 (22.64) => Difference = -0.114
Standard size 155/80/13 (22.76) v/s 185/70/13 (23.19) => Difference = 0.436
Standard size 155/80/13 (22.76) v/s 185/65/14 (23.46) => Difference = 0.708(Nearest in rim size 14)
Standard size 155/80/13 (22.76) v/s 175/70/14 (23.64) => Difference = 0.885
(Correct me if I'm doing something wrong)
When changing tyre size, the tyres should not have more than a 1% difference in diameter - less than 0.5% would be ideal
I visited market and found these two sizes in rim size 13
Yokohama A drive 175/70/13 for 19500 Rs final, (2016)
Yokohama Ecos 185/70/13 for 20000 Rs final
Now tell me Ecos or A drive?
