1. The tube body is equipped with a safety line, with clear identification and easy installation. 2. About 3mm thick pipe wall, not easy to break 3. Aluminum alloy material, sturdy and durable 4. Material: 6061 aluminum alloy 5. Adaptation: generally suitable for folding bikes, mountain bikes 6. Diameter: about 25.4/27.2/28.6/31.6mm 7. Length: about 35cm 8. Weight: about 163 grams for 25.4mm, about 188 grams for 27.2mm, about 186 grams for 28.6mm, and about 175 grams for 31.6mm
