Yeti SnowMX Sliders (hyfax)Description YETI SnowMX rail sliders (aka hyfax hi fax graphite slides). Item notes: Note these are singles IE if you're doing both rails you will need to buy qty 2. Inspect Replace notes: You should visually inspect your sliders every couple rides or so. There is a line along the length of the sliders to indicate wear if this line is less than 1 16" (1. 5mm) or so from the bottom of the slider at any point along the slider (typically sliders wear out