1. The surface is smooth and round, not easy to bend
2. 4mm variable speed wire tube structure (SP vertical wire structure), the variable speed wire tube is arranged by rotating and braiding multiple strands of high carbon steel wire to form a straight wire structure steel wire enclosing layer, which is not easy to be compressed, which is conducive to the speed adjustment of finger dial and front and rear dial
3. 5mm brake wire tube structure (2P spinning wire structure), the brake wire tube is made of a high carbon steel strip wound with 2P spinning wire structure, used for mountain, road or folding bicycle brake braking
4. The outer layer is colored, with bright colors and beautiful personality
5. Material: high carbon steel, PVC
6. Length: about 3m
