Some of you may be unaware that fitting wider tyres to the same diameter wheels will cause your speedo to read a lower MPH / KPH due to the rolling diameter being increased ???
The AR (aspect ratio) is a percentage of the tread width so the sidewalls of a wider tyre will be higher than that of the smaller tyres which will make the speedo read a lower than actual speed.
The AR (aspect ratio) is a percentage of the tread width so the sidewalls of a wider tyre will be higher than that of the smaller tyres which will make the speedo read a lower than actual speed.
