Appropriate with most bikes ~ Mountain bikes, street bikes, cruisers, nice for transporting bicycle gear, groceries or different gadgets, use it when procuring, going to work or going to high school. Materials: excessive modulus carbon fiber 3K. Utility: Heavy mountain off-road. Wheel diameter: 27.5 inches. Peak: 15.5 inches / 17.5 inches / 19.5 inches.