See also:

Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 ...

Installing carrying attachments on the crossbars
When installing any carrying attachment such as a bike carrier, ski carrier, kayak carrier, cargo basket, etc. on the crossbars, follow the manufacturer’s instructions and make sure that the a ...

Load and Speed Rating Descriptions
The load and speed rating descriptions will appear following the size designation. They provide two important facts about the tire. First, the number designation is its load index. Second, the letter ...