Varying shaped block and rectangular tread alternate to provide low rolling resistance but excellent bite in grass, gravel and mud Features the all-weather type ZSG Cross Compound for superior grip in both wet and dry conditions, and CG Tread Pattern for a light riding feel and superior grip Complies with UCI (Union Cycliste Internationale) rules TR - Tubeless compatible casing, sealant required Standard 700x32 622 TBLS - Fold Bk/Blk 75 360 120 TR NoUPC/EAN/GTIN: 705160009671