1. One-piece forging of 6061-T6 aluminum alloy. 2. Compatible with 7-12 speed. 3. Axis Chrome-molybdenum steel, High strength, High temperature resistance, Preservative, Light weight. 4. Laser laser surface treatment, does not fade. 5. 3D forging process, one-piece molding. 6. Box packaging, the best choice for gifts.
