STONEDER 12mm 28mm 29mm Swingarm Swing Arm Bushes

Contents

Replacement Product User Manual

12mm 28mm 29mm Swingarm Swing Arm Bushes

Main product image of a single swingarm bush

Full Range Compatibility • Reliable Quality • Safe and Durable

Foreword

This manual provides clear and detailed instructions for installation, usage, maintenance, and safety precautions to help you operate the accessory correctly, ensure optimal performance, and guarantee your riding safety. Please read all contents thoroughly before installation and use. For any questions, contact our after-sales service team.

This accessory has undergone quality testing and complies with national motorcycle accessory safety standards and relevant industry regulations. Misuse, incorrect installation, or failure to maintain according to instructions may result in accessory damage, motorcycle malfunction, or even safety incidents. Any resulting losses shall be borne solely by the user.

1.1 Product Purpose

Our products are OEM-specific replacement parts for motorcycles, designed to replace aged, damaged, or worn components. They restore normal motorcycle functionality, ensuring riding safety, stability, and comfort.

1.2 Product Features

  • Premium Materials: Crafted from high-quality materials, offering high strength, wear resistance, corrosion resistance, and heat resistance for extended service life.
  • Superior Compatibility: Manufactured to exact OEM dimensions and standards, ensuring precise fitment for designated models. Direct installation without modification, achieving seamless integration with the motorcycle.
  • Stable Performance: Rigorous testing under extreme temperatures, abrasion, and fatigue ensures performance meets OEM standards, effectively restoring motorcycle functions for stable, reliable operation.
  • Safe and Reliable: Complies with national safety standards for motorcycle parts, eliminating safety hazards and effectively enhancing riding safety (e.g., braking components deliver responsive performance, while control components offer smooth operation).

2. Installation Preparation

2.1 Installation Environment Requirements

  • Select a level, dry, well-ventilated location free of flammable or explosive materials for installation. Avoid operating in damp, muddy, oily, or direct sunlight environments.
  • The installation site must provide sufficient working space for component removal and installation. Keep unauthorized personnel away to prevent accidents.

2.2 Safety Preparations

  • Before installation, wear protective gloves to prevent cuts from sharp edges, contamination from oil, or burns from hot components (e.g., ensure the engine is cool when installing exhaust or engine-related parts).
  • When installing brake or steering components, wear safety goggles to prevent small parts or debris from entering the eyes.
  • Before installation, confirm the motorcycle engine is turned off and the ignition key removed to disconnect power. For two-wheeled motorcycles, use the main stand to support the vehicle, ensuring stability and preventing tipping during installation.

2.3 Accessory Inspection

  • Open the product packaging and inspect the accessories for any visible damage, including deformation, cracks, scratches, or rust. Ensure the surfaces are free of oil stains or dirt.
  • Verify that the model and specifications of the accessories match your motorcycle to the information on the product packaging.
  • Verify that all accompanying accessories (e.g., bolts, nuts, washers, seals) are present and undamaged.
  • If you discover any damaged parts, mismatched models, or missing accessories, immediately cease use. Contact your dealer for replacement or reissuance. Do not force installation.

3. Installation Steps

Important Notice: Before installation, ensure the motorcycle engine is turned off, the power is disconnected, and the vehicle is securely supported. Handle all components with care during installation to avoid collisions, damage to parts, or motorcycle components. Strictly follow the steps below without skipping any procedures. If you lack installation experience, we recommend visiting a professional motorcycle repair shop for installation by a qualified technician.

3.1 Removing Old Components

  1. Based on your motorcycle model and the old component's mounting location, first wipe the old component and surrounding areas with a cloth to remove surface grease, dust, and debris, facilitating identification of removal points.
  2. Using appropriate tools, slowly remove bolts, nuts, clips, and other fasteners securing the old component. During disassembly, note the position and quantity of each fastener to prevent loss or misplacement. (Taking photos for reference is recommended).
  3. If fasteners are seized or rusted during removal, spray a small amount of rust remover on the connection point. Wait briefly before attempting removal. Never force the parts, as this may damage bolts, threads, or motorcycle components.
  4. Gently remove the old part. Note its installation orientation, angle, and connection relationships with surrounding components to serve as a reference for installing the new part. After removal, clean the mounting surface and connection points with a cleaner to remove residual oil, debris, and rust, ensuring the installation surface is flat and clean.
  5. Store the removed old parts, bolts, nuts, etc., properly. Do not discard them carelessly to facilitate future recycling or comparison during installation.

3.2 Installing New Components

  1. Ensure the installation orientation and angle of the new component match those of the old part. If the component has installation markings (e.g., "Front," "Rear," "Left," "Right"), strictly follow these markings during installation to prevent incorrect orientation.
  2. Slowly position the new part into the mounting location. Adjust its placement to ensure a snug fit against the mounting bracket and surrounding components. Verify there is no looseness or misalignment, and prevent interference with other parts (e.g., for cable-type components, ensure cables move smoothly without kinks or snags; for brake components, ensure friction surfaces make proper contact).

3.3 Post-Installation Inspection

  • Conduct a comprehensive inspection of all components to ensure all connections are securely fastened, accessories are fully installed, and no parts exhibit looseness, misalignment, or interference.
  • Perform specialized inspections for different types of components:
    • Brake Components: Repeatedly squeeze the brake lever (or depress the brake pedal) to test braking performance. Ensure responsive and effective braking, normal brake travel, and no abnormal noises.
    • Cable Components: Test the flexibility of cables. Adjust cable tension to ensure smooth operation without sticking. Verify cables are secure and free from loosening or detachment.
    • Rearview Mirror Components: Adjust mirror angles for clear visibility. Ensure mirrors are securely fastened with no wobbling.
    • Spark Plug Components: Verify spark plugs are securely installed with reliable ignition wire connections, free from looseness.
    • Inspect surrounding motorcycle components to confirm no damage occurred during installation and all parts are properly positioned.

4. Instructions for Use

4.1 Precautions for First Use

  • After installing new accessories, it is recommended to conduct a short test ride (1-2 kilometers). During the test ride, pay close attention to the performance of the accessories, such as braking effectiveness, operational responsiveness, unusual noises, or signs of looseness.
  • Avoid sudden acceleration, abrupt braking, or sharp turns during the test ride. Maintain steady riding to gradually break in the accessories and ensure proper compatibility with the motorcycle.
  • After the short test ride, recheck the tightness of all accessories. Tighten any loose parts immediately. Address any other abnormalities promptly. Only resume normal riding after confirming everything is in order.

4.2 Daily Usage Guidelines

  • Before riding, always inspect replacement parts to ensure no loose, damaged, or abnormally noisy components. Verify that braking, steering, and transmission systems function properly before starting the vehicle.
  • During riding, avoid abrupt maneuvers (such as sudden braking, aggressive throttle twists, or forced gear shifts) to minimize component wear and extend service life.
  • Avoid prolonged operation in harsh environments (e.g., mud, standing water, dust, intense heat exposure). If components accumulate mud, water, or dust after riding, promptly wipe them clean with a cloth to prevent corrosion or damage.
  • Unauthorized modifications, substituting these components for parts of different models or specifications, or overloading components are strictly prohibited to prevent accidents.
  • Special Usage Requirements for Different Types of Components:
    • Brake Components: Avoid prolonged continuous braking to prevent brake pad overheating, which can degrade braking performance. If increased brake travel or diminished braking effectiveness is detected, promptly inspect brake pad wear and replace them if necessary.
    • Cable-type Components: Regularly inspect cable tension and wear to prevent excessive stretching or twisting. Immediately replace cables showing broken strands or damage.
    • Metal Components: Avoid contact with corrosive substances to prevent rust. Periodically check surfaces for rust or cracks and address promptly.

5. Safety Warning

This section contains critical information. Please read it carefully and strictly adhere to the instructions to prevent accidents caused by improper operation, which could result in personal injury or property damage!!!

  • During installation, ensure the motorcycle engine is turned off and the power is disconnected. The vehicle must be securely supported. Never install or remove parts while the engine is running.
  • If you lack experience installing motorcycle parts, we recommend visiting a professional motorcycle repair shop for installation by a qualified technician. Do not attempt installation yourself to avoid malfunctions caused by incorrect installation.
  • During installation and removal, never use tools that do not meet specifications. Never forcefully pry or install connectors to avoid damaging bolts, threads, accessories, or motorcycle components.
  • After installing replacement parts, conduct a thorough inspection and take a short test ride. Only resume normal riding after confirming the accessory is securely installed and functioning properly. Never ride without passing inspection.
  • If any loosening, abnormal noises, or malfunctions (e.g., brake failure, cable breakage) are detected during riding, immediately stop the motorcycle, shut off the engine, investigate the issue, and address it. Continuing to ride is strictly prohibited.
  • Unauthorized modification of this product is prohibited. Using this product to replace parts of other models or specifications is prohibited. Overloading the accessories is prohibited. Continuing to use accessories that are damaged or aged is prohibited.
  • Brake, steering, and transmission components are critical safety parts. If they exhibit excessive wear, damage, or malfunction, immediately cease use and replace with new parts. Never continue using them after repair.
  • During installation, use, and maintenance, wear protective gear (gloves, goggles, etc.) to prevent hand lacerations, injury from flying parts, burns from hot components, and other accidents.
  • This product is exclusively compatible with specified motorcycle models. Use on non-designated models is strictly prohibited, as it may cause component damage, motorcycle malfunction, and result in safety incidents.
  • Children and minors are strictly prohibited from operating motorcycles or engaging in the installation, removal, or maintenance of components to prevent accidents.

Specifications

The swingarm bushes are designed for Quad ATV Pit Dirt Bike Motorcycles. Please refer to the diagram below for precise dimensions.

Diagram showing dimensions of the swingarm bush: 12mm inner diameter, 28mm outer diameter, 29mm length.

Diagram showing dimensions of the swingarm bush: 12mm inner diameter, 28mm outer diameter, 29mm length.

Product Details
Attribute Value
Brand NameSTONEDER
Model Name12mm 28mm 29mm Swingarm Swing Arm Bushes
Item TypeEngine Cooling & Accessories
Material12mm 28mm 29mm Swingarm Swing Arm Bushes
Inner Diameter (ID)12mm
Outer Diameter (OD)28mm
Length29mm
Item Weight35g
No. of Cylinders1 Cylinder
Displacement (ml)CC
Special FeaturesFor Quad ATV Pit Dirt Bike Motorcycle
External Testing CertificationISO9000
OriginMainland China
Condition100% New
QualityGuaranteed Good Quality
WarrantyYes

Package Contents

The product is available in different quantities. Each package includes the specified number of swingarm bushes and a free keychain gift.

Package containing 2 swingarm bushes and a keychain

2 Pieces + Keychain

Package containing 4 swingarm bushes and a keychain

4 Pieces + Keychain

Maintenance

  • Regular Inspection: Before each ride, inspect all replacement parts for looseness, damage, or abnormal noises.
  • Cleaning: If components accumulate mud, water, or dust after riding, promptly wipe them clean with a cloth to prevent corrosion or damage.
  • Corrosion Prevention: Avoid contact with corrosive substances. Periodically check surfaces for rust or cracks and address promptly.
  • Cable Maintenance (if applicable): Regularly inspect cable tension and wear. Replace cables showing broken strands or damage immediately.
  • Brake Pad Check (if applicable): If diminished braking effectiveness is detected, inspect brake pad wear and replace if necessary.

Troubleshooting

  • Abnormalities During Inspection: If loose components, operational stuttering, or ineffective braking are detected during pre-ride inspection, immediately cease use. Remove and reinstall the component, or contact a professional technician.
  • Issues During Riding: If any loosening, abnormal noises, or malfunctions (e.g., brake failure, cable breakage) are detected while riding, immediately stop the motorcycle, shut off the engine, investigate the issue, and address it. Do not continue riding until the problem is resolved.
  • Damaged/Aged Parts: Continuing to use accessories that are damaged or aged is prohibited. Replace them with new parts.

User Tips

No specific user tips were available from customer reviews or Q&A for this product at this time. Always follow the instructions in this manual for optimal performance and safety.

6. After-Sales Service & Support

If you have any questions during the installation, use, or maintenance of this accessory, or if you discover any quality issues with the accessory, please contact our after-sales service team promptly. We will be happy to assist you.

Service Hours: Monday to Friday, 9:00 AM to 6:00 PM

Statement

This manual is intended solely as a reference for installation, operation, and maintenance. Should any discrepancies arise between the manual and the actual product due to motorcycle model updates or accessory upgrades, please refer to the physical product and dealer instructions. The company reserves the final right of interpretation regarding the contents of this manual. For any questions regarding the manual, please contact our after-sales service team.

Kindly note: Please keep this manual in a safe place for future reference and use.

For additional information, you may refer to the User manual (PDF).

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