Chromed Vision fork sliders. When ordering this part please let us know what year your Vision is and if it is an '09 or newer, you must let us know whether you have the 45mm forks or the 46mm. The easiest way to tell is to look for an "M" on the inside of the fork slider near the upper caliper mounting hole. If your slider has an "M" cast into the housing, you have the 45mm forks. If your slide does not have an "M" cast into it, you have the 46mm forks.