What purpose do directional arrows serve?
Originally, race conditions dictated that running a tire in a specific direction rolled the tread splice overlap down during operation. There are now two main reasons for directional arrows. The first being that some motorcycle tires now have tread patterns that are designed for a specific rotation for optimum performance, particularly on wet roads. Directional arrows indicate proper directional rotation. Secondly, running a tire will set up a wear pattern that may cause ride disturbance if reversed. The directional arrow insures that a tire can be re-fitted in the original direction.
