Product description: Material: carbon tube + carbon clamp Offset: 0MM Length size: 300/350/400MM Diameter: 25.4/27.2MM/31.6MM Finish: UD Matte Weight (including fixture): 27.2*350=135±5 Maximum load: 120KG Saddle rail compatibility: round rail (7*7) oval rail (7*9) Torque Spec：Seatpost Collar Determined by your Frame manufacture/Seatpost Collar（Recommended locking torque ≤ 5.1NM） How to choose seatpost size: 1. Check the diameter of the original seat post and select the same size as the original diameter. 2. Measure the inner diameter of the frame tube. Choose the same size as the inner diameter of the frame. Pre-Purchase Terms and Conditions Clause 1: Product Disclaimer *1.1 We are consistently committed to optimizing and upgrading our products. There may be slight variations in details such as 【decals】, 【color schemes】, and 【appearance styles】 between different batches. These differences are not stains or appearance flaws, do not affect product performance or normal use, and are not considered 【product quality/defects/flaws】. They are not eligible for refunds.* *1.2 The texture and color displayed by carbon fiber components using bare carbon finish are typically a natural representation of the carbon fiber weaving structure. Each surface texture may vary, presenting a unique appearance. This is not a stain or appearance flaw, does not affect product performance or normal use, and is not considered 【product quality/defects/flaws】. It is not eligible for refunds.* *1.3 Due to the unique nature of carbon fiber products, uneven tubing and variations in wall thickness are common and normal phenomena. These are not considered 【product quality/defects/flaws】, do not affect product performance or normal use, They are not eligible for refunds.* *1.4 After use, products will naturally show signs of 【wear/aging/wrinkling/dents】. These are not considered 【product quality/defects/flaws】 They are not eligible for refunds.* *1.5 Due to differences in color calibration, contrast, and brightness settings of display devices such as computers, mobile phones, and tablets, there may be slight color differences between the screen display and the actual product. This is an objective phenomenon caused by display device characteristics and is not a stain or appearance flaw. It is not considered 【product quality/defects/flaws】 and is not eligible for refunds.* Clause 2: Courier Logistics and Receipt 2.1 To protect your rights, please inspect the goods before signing for receipt. If the packaging is damaged, deformed, impacted, or shows signs of repeated packaging, refuse to sign for it immediately, take photos as evidence, and contact customer service to report the situation. We will assist in protecting your rights. 2.2 Aside from personal receipt by you, receipt by your cohabiting family members or a designated third party, or instructions to the courier to place the goods at a specified location will also be considered as receipt by you, and the goods will be deemed delivered. 2.3 When unpacking after receipt, it is recommended to record a complete video as evidence. If the product is unused but damaged upon unpacking, you must provide a complete unpacking video. Otherwise, our company will not assume any responsibility. Limited Warranty Terms 3 3.1. Intentional alteration/defacement/wear of the product serial number/manufacturing code will void any liability of our company. 3.2. Our company only guarantees the 【carbon fiber main body】 and assumes no responsibility for 【free gifts/promotional items/personalized accessories】 included with the order. 3.3. Unauthorized repairs or modifications of product components will void any liability of our company. 3.4. Damage caused by incorrect assembly contrary to the instructions manual will not be covered by our company. 3.5. Our company shall not be held liable for damages resulting from accidents or misuse. 3.6. Malfunctions caused by external factors, such as collisions, falls from height, improper placement, stunt performances, etc., are not covered by our company. 3.7. Damage resulting from improper cleaning operations will not be covered by our company. 3.8. Our company assumes no responsibility for bending, breakage, or other issues caused by road obstacles or potholes. 3.9. This product is intended for personal riding use only. Our company shall not be liable for malfunctions resulting from commercial rentals or other improper usage. 3.10. Damage caused by force majeure, such as natural disasters, is not covered by our company. NOTE:By purchasing our products, the buyer agrees to these terms. The final interpretation right resides solely with Dongguan Qiku Outdoor Sports Equipment Co., Ltd

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