... The sole & biggest manufacturer 3.Shock absorbing 4.No deformation carbon road bike 1. Specification Model700C*23C-45C StructureFixed GearSize700C*23C-45C MaterialMagnesium ... , intelligent designs, stylish appearances, simple operation, intelligent designs, low-carbon and other features. Our products are widely used in many ... you have any question, pls feel free to contact us! carbon road bike