Crest Estate Grey fixie bike is reliable, they look good and they have a great value for money. The wheels have a 50 millimetres profile and have a road bike size of 700C. They are equipped with front and rear brakes. It comes with a fixed sprocket on one side and a free (single speed) sprocket on the other side of the wheel, so that you can use the cycling style you wish.The Crest Estate is definitely a very beautiful bike for a really good price, ideal to move around the city.