ST: Short Travel Thudbuster with 1.3" travel for XC, Road or Comfort use. Patented 4-pivot force aligned parallel linkage. Pedal to saddle distance remains nearly constant through travel . Single medium elastomer. Minimum frame to top of rail height, 94mm. Aluminum mast and links with rebuildable stainless pivots. Bronze impregnated, PTFE coated steel bushings. 454-474g (diameter dependent). Features: For XC, road, and riders needing lower minimum saddle height 10mm offset, 100mm minimum height, 255mm maximum height