See also:

Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading standards”. ...

Tire Identification Number (TIN)
Tire Identification Number (TIN) is marked on the intended outboard sidewall. The TIN is composed of four groups. Here is a brief review of the TIN with a breakdown of its individual elements. ...

Forward and backward adjustment
Pull the lever upward and slide the seat to the desired position. Then release the lever and try to move the seat back and forth to make sure that it is securely locked into place. ...