<p>These mountain bike tires are made of imported rubber with wear resistance, providing a durable and long-lasting performance. They are available in two sizes: 24x1.25 and 26x1.25, with a PSI range of 45-65PSI. The tires are black in color and have a weight of approximately 520g for the 24x1.25 size and 620g for the 26x1.25 size.</p>