Bicycle Parts

1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

Read more less

1. Weight: the front caliper is about 199.6 grams, the rear brake caliper is about 204.8 grams2. Braking method: hydraulic piston bidirectional braking3. Material: aluminum alloy4. Application: mountain bike, folding bike, etc.5. Features:-One-piece oil cylinder, all CNC machining-Fine-tune the tension of the brake inner cable to achieve the ideal brake handle feel-Two-way braking, safe and secure-Simple and convenient installation-Beautiful and practical, durable6. Note: after removing the barrier sheet, it cannot produce a braking effect before installing it on the frame, otherwise the sheets will come together and need to be refilled

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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1. Weight: about 10g/pair2. Size: 26x34mm3. Material: aluminum alloy, plastic4. Application: suitable for handlebars with inner diameter of 22-24 mm5. Features: beautiful and practical, sturdy and durable, strong compatibility, not easy to lock, easy to install6. Description: 2 pcs/pair

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Parameter:1. Weight: 45T 80g, 47T 85g, 53T 110g, 56T 120g, 58T 135g2. BCD: 130 mm3. Material: aluminum alloy4. Diameter: 45T 195 mm, 47T 205 mm, 53T 225 mm, 56T 235 mm, 58T 245 mm5. Application: 14-inch folding bicycles are generally 45T/47T, 16-inch foldable bicycles generally do not exceed 53T, 20-inch foldable bicycles generally do not exceed 56T (adjust according to personal circumstances)6. Specifications: 45T, 47T, 53T, 56T, 58T7. Color: black, red, silver, goldFeatures:1. Fully hollow and lightweight design, lightweight and practical2. Full CNC cutting, strong and durable3. Thicker disc, better rigidity4. Positive and negative tooth design, not easy to drop the chain, arc transition of the connection position, not easy to accumulate sand5. Easy to installDescription:1. The larger the number of teeth of the disc, the larger the diameter, the faster the relative riding, and the harder it will be2. When choosing a disc with a large number of teeth, please make sure that its diameter will not rub against the frame, otherwise you need to replace a longer bottom bracket3. Change the large number of teeth disc, the chain must be lengthened4. Please make sure that the BCD is 130 mm5. BCD is the circle surrounded by 5 holes of the crank. The diameter of this circle is 65mm from the crank hole to the crank center. (Note the distance on the plane on the side of the chainring)

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Parameter:1. Weight: 45T 80g, 47T 85g, 53T 110g, 56T 120g, 58T 135g2. BCD: 130 mm3. Material: aluminum alloy4. Diameter: 45T 195 mm, 47T 205 mm, 53T 225 mm, 56T 235 mm, 58T 245 mm5. Application: 14-inch folding bicycles are generally 45T/47T, 16-inch foldable bicycles generally do not exceed 53T, 20-inch foldable bicycles generally do not exceed 56T (adjust according to personal circumstances)6. Specifications: 45T, 47T, 53T, 56T, 58T7. Color: black, red, silver, goldFeatures:1. Fully hollow and lightweight design, lightweight and practical2. Full CNC cutting, strong and durable3. Thicker disc, better rigidity4. Positive and negative tooth design, not easy to drop the chain, arc transition of the connection position, not easy to accumulate sand5. Easy to installDescription:1. The larger the number of teeth of the disc, the larger the diameter, the faster the relative riding, and the harder it will be2. When choosing a disc with a large number of teeth, please make sure that its diameter will not rub against the frame, otherwise you need to replace a longer bottom bracket3. Change the large number of teeth disc, the chain must be lengthened4. Please make sure that the BCD is 130 mm5. BCD is the circle surrounded by 5 holes of the crank. The diameter of this circle is 65mm from the crank hole to the crank center. (Note the distance on the plane on the side of the chainring)

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Parameter:1. Weight: 45T 80g, 47T 85g, 53T 110g, 56T 120g, 58T 135g2. BCD: 130 mm3. Material: aluminum alloy4. Diameter: 45T 195 mm, 47T 205 mm, 53T 225 mm, 56T 235 mm, 58T 245 mm5. Application: 14-inch folding bicycles are generally 45T/47T, 16-inch foldable bicycles generally do not exceed 53T, 20-inch foldable bicycles generally do not exceed 56T (adjust according to personal circumstances)6. Specifications: 45T, 47T, 53T, 56T, 58T7. Color: black, red, silver, goldFeatures:1. Fully hollow and lightweight design, lightweight and practical2. Full CNC cutting, strong and durable3. Thicker disc, better rigidity4. Positive and negative tooth design, not easy to drop the chain, arc transition of the connection position, not easy to accumulate sand5. Easy to installDescription:1. The larger the number of teeth of the disc, the larger the diameter, the faster the relative riding, and the harder it will be2. When choosing a disc with a large number of teeth, please make sure that its diameter will not rub against the frame, otherwise you need to replace a longer bottom bracket3. Change the large number of teeth disc, the chain must be lengthened4. Please make sure that the BCD is 130 mm5. BCD is the circle surrounded by 5 holes of the crank. The diameter of this circle is 65mm from the crank hole to the crank center. (Note the distance on the plane on the side of the chainring)

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Parameter:1. Weight: 45T 80g, 47T 85g, 53T 110g, 56T 120g, 58T 135g2. BCD: 130 mm3. Material: aluminum alloy4. Diameter: 45T 195 mm, 47T 205 mm, 53T 225 mm, 56T 235 mm, 58T 245 mm5. Application: 14-inch folding bicycles are generally 45T/47T, 16-inch foldable bicycles generally do not exceed 53T, 20-inch foldable bicycles generally do not exceed 56T (adjust according to personal circumstances)6. Specifications: 45T, 47T, 53T, 56T, 58T7. Color: black, red, silver, goldFeatures:1. Fully hollow and lightweight design, lightweight and practical2. Full CNC cutting, strong and durable3. Thicker disc, better rigidity4. Positive and negative tooth design, not easy to drop the chain, arc transition of the connection position, not easy to accumulate sand5. Easy to installDescription:1. The larger the number of teeth of the disc, the larger the diameter, the faster the relative riding, and the harder it will be2. When choosing a disc with a large number of teeth, please make sure that its diameter will not rub against the frame, otherwise you need to replace a longer bottom bracket3. Change the large number of teeth disc, the chain must be lengthened4. Please make sure that the BCD is 130 mm5. BCD is the circle surrounded by 5 holes of the crank. The diameter of this circle is 65mm from the crank hole to the crank center. (Note the distance on the plane on the side of the chainring)

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Parameter:1. Weight: 264/278/286/292 grams2. Length: 165/190/200/210 mm3. Stroke: 35/50/53/53 mm4. Function: adjustable damping, compression adjustment, air pressure soft and hard adjustment, suspension lock5. Description: equipped with a pair of bushings, installation width 24mm, diameter 8mmFeatures:1. Lightweight design2. Beautiful and practical, durable3. Versatile4. Suitable for all kinds of harsh roads5. Easy to install

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Parameter:1. Weight: 264/278/286/292 grams2. Length: 165/190/200/210 mm3. Stroke: 35/50/53/53 mm4. Function: adjustable damping, compression adjustment, air pressure soft and hard adjustment, suspension lock5. Description: equipped with a pair of bushings, installation width 24mm, diameter 8mmFeatures:1. Lightweight design2. Beautiful and practical, durable3. Versatile4. Suitable for all kinds of harsh roads5. Easy to install

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Parameter:1. Weight: 264/278/286/292 grams2. Length: 165/190/200/210 mm3. Stroke: 35/50/53/53 mm4. Function: adjustable damping, compression adjustment, air pressure soft and hard adjustment, suspension lock5. Description: equipped with a pair of bushings, installation width 24mm, diameter 8mmFeatures:1. Lightweight design2. Beautiful and practical, durable3. Versatile4. Suitable for all kinds of harsh roads5. Easy to install

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Parameter:1. Weight: 264/278/286/292 grams2. Length: 165/190/200/210 mm3. Stroke: 35/50/53/53 mm4. Function: adjustable damping, compression adjustment, air pressure soft and hard adjustment, suspension lock5. Description: equipped with a pair of bushings, installation width 24mm, diameter 8mmFeatures:1. Lightweight design2. Beautiful and practical, durable3. Versatile4. Suitable for all kinds of harsh roads5. Easy to install

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Parameter:1. Weight: 264/278/286/292 grams2. Length: 165/190/200/210 mm3. Stroke: 35/50/53/53 mm4. Function: adjustable damping, compression adjustment, air pressure soft and hard adjustment, suspension lock5. Description: equipped with a pair of bushings, installation width 24mm, diameter 8mmFeatures:1. Lightweight design2. Beautiful and practical, durable3. Versatile4. Suitable for all kinds of harsh roads5. Easy to install

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Parameter:1. Material: aluminum alloy bracket + stainless steel outer ring2. Thickness: about 1.8 mm3. Diameter: 140 / 160 / 180 / 203 mm4. Weight: 83 / 109 / 136 / 176 g (corresponding to the upper diameter)5. Application: road bikes, mountain bikes, etc. (standard 6-hole installation, hole core diameter 44 mm)Features:1. Full CNC engraving and milling, electroplating and coloring, anti-oxidation2. Stamping and forming, high hardness, no abnormal brake sound3. Corrosion resistant, not easy to rust4. Hollow design, strong decontamination and drainage5. Beautiful and practical, simple and convenient installation

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Parameter:1. Material: aluminum alloy bracket + stainless steel outer ring2. Thickness: about 1.8 mm3. Diameter: 140 / 160 / 180 / 203 mm4. Weight: 83 / 109 / 136 / 176 g (corresponding to the upper diameter)5. Application: road bikes, mountain bikes, etc. (standard 6-hole installation, hole core diameter 44 mm)Features:1. Full CNC engraving and milling, electroplating and coloring, anti-oxidation2. Stamping and forming, high hardness, no abnormal brake sound3. Corrosion resistant, not easy to rust4. Hollow design, strong decontamination and drainage5. Beautiful and practical, simple and convenient installation

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Parameter:1. Material: aluminum alloy bracket + stainless steel outer ring2. Thickness: about 1.8 mm3. Diameter: 140 / 160 / 180 / 203 mm4. Weight: 83 / 109 / 136 / 176 g (corresponding to the upper diameter)5. Application: road bikes, mountain bikes, etc. (standard 6-hole installation, hole core diameter 44 mm)Features:1. Full CNC engraving and milling, electroplating and coloring, anti-oxidation2. Stamping and forming, high hardness, no abnormal brake sound3. Corrosion resistant, not easy to rust4. Hollow design, strong decontamination and drainage5. Beautiful and practical, simple and convenient installation

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1. Material: aluminum alloy2. Weight: 58 grams3. Application: single-speed folding car, etc.4. Purpose: reduce chain tooth feel5. Features: CNC processing and forging, not easy to deform, high strength, good hardness, not easy to rust, beautiful and practical, simple and convenient to install

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1. Material: aluminum alloy2. Weight: 58 grams3. Application: single-speed folding car, etc.4. Purpose: reduce chain tooth feel5. Features: CNC processing and forging, not easy to deform, high strength, good hardness, not easy to rust, beautiful and practical, simple and convenient to install

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1. Material: aluminum alloy2. Weight: 58 grams3. Application: single-speed folding car, etc.4. Purpose: reduce chain tooth feel5. Features: CNC processing and forging, not easy to deform, high strength, good hardness, not easy to rust, beautiful and practical, simple and convenient to install

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1. Material: aluminum alloy2. Weight: 58 grams3. Application: single-speed folding car, etc.4. Purpose: reduce chain tooth feel5. Features: CNC processing and forging, not easy to deform, high strength, good hardness, not easy to rust, beautiful and practical, simple and convenient to install

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Material: aluminum alloy + steel bearing2. Diameter: 11T about 41mm, 13T about 49mm3. Specification: use 4/5/6mm shaft guide wheel4. Weight: 8.8g for 11T, 13g for 13T5. Features: steel bearing, waterproof and dustproof, super durability, multi-color cool, embellish the car, simple and convenient installation6. Selection of guide wheels:- Try to choose the same size as the original guide wheel, there is no the same, you can choose a smaller one than the original guide wheel, but can not choose a larger one- The guide wheel and the tension wheel are not distinguished. Some rear derailleur original guide wheels and the tension wheel are different in size and can be replaced. The chain length needs to be adjusted.

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1. Weight: 190 g2. Material: metal3. Dimensions: length 124 mm4. Application: mountain bike5. Features: beautiful and practical, simple and convenient to install, strong and durable material, fine frosted technology, comfortable hand feeling, adjustable height

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1. Weight: about 680 g2. Size: 17x26x9 cm3. Material: PP, PU, sponge4. Application: bicycles, scooters, etc.5. Features: easy installation, widened cushion without nose, high elastic polyester sponge, comfortable sitting feeling, elbow damping bow, round and concave rear seat, wear-resistant and durable

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1. Weight: about 680 g2. Size: 17x26x9 cm3. Material: PP, PU, sponge4. Application: bicycles, scooters, etc.5. Features: easy installation, widened cushion without nose, high elastic polyester sponge, comfortable sitting feeling, elbow damping bow, round and concave rear seat, wear-resistant and durable

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