There are several good brands available in the market. Yokohama, Michellan,Toyo, Good-year, Firestone, are to name a few. While Q-tire is one place you may find these tires, there are a many shops located on Salwa Road if you are coming from Musheirab side and keep a lookout after the midmag round about. Some shops are present just after Azizia on the main Salwa road. Best of luck.