China Tire Manufacturing
In the referenced document you will find information that may help your fears about double standards for “off shore” tire manufacturers. This is about Passenger and Light Truck tires. Many of them ...
Forum Discussion
Just to clear up a point on ST tires.
Part of the tire standard published by the Tire and Rim Association is a note that the max speed for ST tires can be increased to 75 mph if 10 more psi is used - and to 85 mph if a reduction in load of 10% is also used.
Note: This is part of the STANDARD. This applies to ALL ST tires (unless they have a speed symbol that supersedes the speed restriction).
So even if the particular chart you are looking at doesn't have the note, it still applies. I note with interest that Goodyear seems to have a bulletin that makes this exact point - and it doesn't seem to appear with the chart in the manual. I suspect that this is just a matter of waiting for an update to the manual. It is not unusual for these updates to take a decade or more (Low priority vs the amount of revision work needed) As an example, the Rubber Manufacturers Association recently updated their passenger car tire manual after about 20 years - and it took them 2 1/2 years to complete.
Part of the tire standard published by the Tire and Rim Association is a note that the max speed for ST tires can be increased to 75 mph if 10 more psi is used - and to 85 mph if a reduction in load of 10% is also used.
Note: This is part of the STANDARD. This applies to ALL ST tires (unless they have a speed symbol that supersedes the speed restriction).
So even if the particular chart you are looking at doesn't have the note, it still applies. I note with interest that Goodyear seems to have a bulletin that makes this exact point - and it doesn't seem to appear with the chart in the manual. I suspect that this is just a matter of waiting for an update to the manual. It is not unusual for these updates to take a decade or more (Low priority vs the amount of revision work needed) As an example, the Rubber Manufacturers Association recently updated their passenger car tire manual after about 20 years - and it took them 2 1/2 years to complete.
