Fast rolling tightly spaced block tread with a wide centerline and tread that extends on the shoulders for responsive cornering performance. SnakeSkin fabric on the side wall makes the tubeless conversion for the MTB extremely easy and safe. It also provides the best cut protection on the side wall. TLR/TR - Tubeless (Light) Race is the lightest tubeless ready version of tires offered and also features an improved bead shape for better retention. REF - Reflective sidewall striping or hotpatch to aid in low light visibility