New tread design - Modern and aggressive look, optimized for fast rolling and best in class cornering tractionNew race compound - The Booster utilizes a newly developed race compound that is fast and grippy, especially on dry, loose over hard and rough and rocky terrainGCT - Features the GCT casing which wraps the tire from bead to bead with a secondary casing layer acting as a shield against punctures and sidewall slashes without the weight of conventional beltingTubeless700x40622TBLS - FoldBk/Skn75490120GCTYesUPC/EAN/GTIN: 047853658651