1. Using high-strength aluminum alloy, safe and stable, strong and durable 2. The alternate design of positive and negative teeth makes the chain smoother and more stable, not easy to fall off, and has high occlusal strength 3. T6 heat-treated, CNC machined, lighter in weight and higher in strength 4. Hollow weight reduction, mud drainage design 5. Material: 7075 aluminum alloy 6. Process: CNC machining, T6 heat treatment 7. Speed: 12-speed 8. Applicable: suitable for Shimano M6100/M7100/8100/9100 9. Specifications: 32/34/36/38T 10. Weight: 32T about 68 grams, 34T about 76 grams, 36T about 84 grams, 38T about 92 grams 11. Diameter: 32T about 13.5 cm, 34T about 14.4 cm, 36T about 15.1 cm, 38T about 16 cm
