Crossrc launched a special tire for the 120/45 R1.9 climbing bike, number 97400890. The tire skin adopts super soft formula and is equipped with a special high-density sponge inner tube, which pays equal attention to support and grip. And there are three different sizes and different hardnesses for players to choose between simulation and performance97400423 - 115/45 R1.9 Standard97400358 - 115/45 R1.9 Super Soft97400690 - 102/36 R1.9 Standard97400890 - 120/45 R1.9 Super Soft