The sizes shown are average design values for tyres measured on specified measuring rim widths. Some tyres may vary from this value by +/-3% of the section height (affecting overall diameter), and +/-4% of the section width. Section width varies approximately 0.2" (5mm) for every 0.5" change in rim width. Tread patterns are often tuned to accomodate different tyre widths. Tyres for a particular dimension of a given tyre line may vary in appearance from the tyre shown in the photograph. WARNING: Serious or fatal injury may result from tyre failure due to underinflation or overloading. To ensure correct air pressure and vehicle load, refer to vehicle owner's manual or tyre information placard on the vehicle. Serious injury or death may result from explosion of tyre/rim assembly due to improper mounting. Only tyre professionals should mount tyres and they should never inflate beyond 2.8 bar to seat the beads. Before mixing types of tyres in any configuration on any vehicle, be sure to check the vehicle owner's manual for its recommendations. DANGER: Never mount a 16" diameter tire on a 16.5" rim. DANGER: Never mount a 17" diameter tire on a 17.5" rim. Inflation pressure increase must not exceed the maximum pressure branded on the tyre sidewall. When a customer requests a replacement tyre with a lower speed rating than the original equipment tyre, you must clearly communicate to him or her that the handling of the vehicle may be different, and that its maximum speed capability is limited to that of the lowest speed-rated tyre on the vehicle. Exceeding the lawful speed limit is neither recommended nor endorsed.