Changing from 17" to 15"

[Neurotic Hapi Snak]

Stock 15" wheels are 5.5j 45mm offset with a 185/60r15 tire. That gives a tire diameter of 23.7", slightly larger than your 205/40r17 diameter, which is 23.5". The 185/55r15 5.5j +45 will give you a diameter of 23", the same as the stock 14" 5j 45mm offset with 175/65r14 tire.

[Revengeance]

Originally Posted by yarisugi

Is you car lowered? If so, how much lower?

Thank you for replying! I can't say how much it is lowered but its really low! (i will try to upload pics later)
And that is one of my reasons i want to go back to 15" and even change my bumper to a vitz rs bumper one...

Originally Posted by Neurotic Hapi Snak

Stock 15" wheels are 5.5j 45mm offset with a 185/60r15 tire. That gives a tire diameter of 23.7", slightly larger than your 205/40r17 diameter, which is 23.5". The 185/55r15 5.5j +45 will give you a diameter of 23", the same as the stock 14" 5j 45mm offset with 175/65r14 tire.

Thank you for replying! Too many numbers make my nose bleed.. Anyway, i dont get the diameter thing, if the diameter is larger or smaller what will it give to my car?