An aggressive yet well rounded downhill and gravity tire with well spaced, partially hollow and siped tall knobs for extreme gripRSR - Building on the impressive original, the new RSR compound is a dual layer tread rubber, with the soft RSR compound on top and the stiff SRC on bottomAGC - Advanced Gravity Casing, utilizes strips of Kenda Vector Shield (KVS), a lightweight woven aramid material, positioned under the tread area and along the sidewalls to protect the tire from cuts and puncturesUPC/EAN/GTIN: 047853665352