The characteristics of carbon fiber frame are "light, not bending, good impact absorption", but it is not so easy to give full play to the excellent performance of carbon fiber in technology, and the quality difference between the carbon fiber material manufacturers is also large. Bicycle manufacturers are unlikely to use high grades of carbon fiber for their frames because of the cost.
Carbon fiber is carbon fiber solidified into a resin. Very light, but it is a directional material (strong tensile strength but weak shear strength), compared to titanium alloy material, carbon fiber frame has the following problems:
(1) If the external force acts on the carbon fiber frame at a certain Angle with the fiber, its strength will be greatly reduced and it is easy to crack.
(2) The resin added in the curing process of carbon fiber frame has the problem of aging, and the wind and sun will gradually shadow the performance of the frame.
(3) Carbon fiber frame is formed in one after solidification of mold. The mold cost is quite high, and the factory cannot meet the requirement of customized service for customers.

Advantages of titanium alloy frame
(1) Light weight and high strength of pure titanium frame can be made.
(2) No rust: titanium in the general environment will almost not be corroded.
(3) ride a feeling good :Titanium is also used in the springs of shock absorbers. The current titanium frame is ideal for long rides and feels great.