1. Aluminum alloy material, strong and durable, not easy to rust2. Simple installation, convenient and practical3. Use: seat tube reducing sleeve (large to small)4. Material: aluminum alloy5. Specifications: 27.2mm to 25.4mm, 28.6mm to 25.4mm, 28.6mm to 27.2mm, 30.4mm to 27.2mm, 30.8mm to 27.2mm, 31.6mm to 27.2mm, 33.9mm to 27.2mm, 33.9mm to 31.6 mm6. Size: about 6cm/piece7. Weight: 27.2mm to 25.4mm about 11g/pc, 28.6mm to 25.4mm about 20.5g/pc, 30.4mm to 27.2mm about 22g/pc, 30.8mm to 27.2mm about 25g/pc, 31.6mm to 27.2mm about 31g/piece, 33.9mm to 27.2mm about 49g/piece, 33.9mm to 31.6mm about 69g/piece

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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 break3. Aluminum alloy material, sturdy and durable4. Material: 6061 aluminum alloy5. Adaptation: generally suitable for folding bikes, mountain bikes6. Specifications: about 31.8x530mm, 33.9x550mm

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1. With safety identification line, easy to install2. Thickened pipe wall, not easy to break3. Matte surface, anodized, durable4. The angle of the seat cushion can be fine-tuned5. Material: 6061 aluminum alloy6. Diameter: about 25.4/27.2/28.6/30.4/30.8/31.6mm7. Length: about 35/45cm

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Details:1. Material: Aluminum alloy2. Weight: about 628 grams for outer wiring 30.9 mm, about 650 grams for outer wiring 31.6 mm, about 653 grams for inner wiring 30.9 mm, and about 679 grams for inner wiring 31.6 mm3. Length: 375 mm for outer wiring, 400 mm for inner wiring4. Specification: 43x42mm,5. Stroke: 100 mm6. Wall thickness: 3mm7. Diameter: 30.9/31.6mm8. The length of the internal cable: 170 mm (can be cut according to the bicycle)9. Applicable models: road bikes, mountain bikes, etc.10. Color: blackFeatures:1. Double-nail rear drift design, both screws use 10.9 torque, the screw locking is more stable2. Sealing ring design, rainproof and dustproof, protect the seat tube, and will not leak oil3. The lifting seat tube adopts oil pressure system with high lubricity4. The suspension rod will not be affected by the side5. Coil springs provide proper compression and rebound damping, making riding easier6. There is a fine adjustment screw on the bottom, which has been adjusted and no adjustment is required7. The material is durable and easy to install

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Parameter:1. Weight: 576 g2. Caliber: 27.2 mm, 31.6 mm3. Material: aluminum alloy4. Length: 350 mm5. Cushion locking method: double-nail floating typeFeatures:1. Aluminum alloy forging, higher strength and hardness2. The shock absorber system changes the riding comfort3. The screw under the seat tube can finely adjust the stroke rebound speed4. Beautiful and practical5. Easy to install and use

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Parameter:1. Weight: about 338 grams2. Size: 33.9x600mm3. Material: aluminum alloy4. Scope of application: folding bicycle5. Bearing weight: less than 80 kgFeatures:1. Aluminum alloy forging, light and practical2. Exquisite workmanship, beautiful and cool4. The balance chuck can steplessly adjust the inclination of the seat cushion5. The fixture adopts a special tubular design, with higher strength6. Plum blossom-shaped pipe, light and strong7. Easy to install and durable

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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 break3. Aluminum alloy material, sturdy and durable4. Material: 6061 aluminum alloy5. Adaptation: generally suitable for folding bikes, mountain bikes6. Diameter: about 25.4/27.2/28.6/31.6mm7. Length: about 35cm8. 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

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1. Material: Carbon Fiber 2. Size: 31.6 x 400mm 3. Bike Type: Mountain/Road Bike 4. Weight: about 220g 5. Super strong yet light weight. easy to operate.

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1. Material: Carbon Fiber 2. Size: 30.8 x 350mm 3. Bike Type: Mountain/Road Bike 4. Weight: about 220g 5. Super strong yet light weight. easy to operate.

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1. Material: Carbon Fiber 2. Size: 27.2 x 400mm 3. Bike Type: Mountain/Road Bike 4. Weight: about 220g 5. Super strong yet light weight. easy to operate.

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1. Material: Carbon Fiber 2. Size: 30.8 x 400mm 3. Bike Type: Mountain/Road Bike 4. Weight: about 220g 5. Super strong yet light weight. easy to operate.

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