BEIOU Carbon Fiber Handle Bar Unibody Mountain Bike Riser Bar 620mm Road Bike Handle Bar Ultralight T700 Matte Grey Red H002B462 Bar bore : 31.8mm ;Weight: About 130g Material: Full Carbon Fiber, Toray T700 Finish: Matte; Color: Grey&Red Max Torque: 5Nm Beiou products were made mainly with Toray T700 carbon fiber, whose tensile strength is 500kgf/mm2, 4900MPa, the tensile modulus is 24ton/mm2, 230GPa, the elongation is 2.1, and the density is 1.8g/cm3.