A flat tire is a major bummer, but your spare tire can save the day. Here's what you need to know about using it safely.

Learn essential performance tire repair guidelines, including speed ratings, structural damage, and repair limitations for ...

Using a tire with a speed rating that is too low can lead to premature ... making your motorcycle handle more like a truck ...

Speed ratings for other tires include Q, 99 mph ... to stop on a wet surface with Government grades of AA, A, B, C, from best to worst. UTQGS, which stands for Uniform Tire Quality Grading ...