1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your SHAD SH58X Carbon Expandable Top Case. Designed for motorcycles, this top case offers versatile storage solutions with its unique expandable volume feature. Please read this manual thoroughly before use to ensure proper function and safety.
2. Product Features
- Expandable Volume: Adjusts from 46 liters (compact) to 58 liters (expanded) to accommodate varying storage needs.
- High Capacity: Capable of storing two full-face helmets in the expanded position.
- Durable Construction: Made from high-impact resistant materials with minimal thickness for ultra-lightness.
- Waterproof Design: Fully waterproof to protect contents from the elements.
- Aerodynamic Profile: Aesthetically designed with a rounded body and flat top face for improved aerodynamics.
- Carbon Cover: Includes a stylish carbon finish cover.
- Integrated Reflectors: Enhances visibility.
- Security: Features a secure locking mechanism.
- Quick Release System: Easy to attach and detach from the mounting plate.
3. Package Contents
Verify that all components are present in the package:
- SHAD SH58X Carbon Expandable Top Case
- Mounting Rack
- Set of Screws and Fasteners
- Keys for Locking Mechanism
Note: Specific motorcycle mounting kits are sold separately and are required for installation.
4. Installation Guide
Installation of the SHAD SH58X Top Case requires a compatible SHAD mounting kit specific to your motorcycle model. Ensure you have the correct kit before proceeding.
4.1. Mounting Plate Installation
- Prepare Motorcycle: Ensure your motorcycle is stable on its stand. Remove any existing luggage racks or components that may interfere with the SHAD mounting kit.
- Attach Mounting Brackets: Follow the instructions provided with your specific SHAD mounting kit to attach the support brackets to your motorcycle's rear frame. These brackets typically secure to existing bolt points.
- Secure Mounting Rack: Place the SHAD mounting rack (included with the top case) onto the installed support brackets. Align the holes and secure it using the provided screws and fasteners. Ensure all bolts are tightened securely, but do not overtighten.
- Verify Stability: Gently shake the installed rack to ensure it is firmly attached and does not wobble.
4.2. Attaching the Top Case
- Align Case: Position the SH58X top case over the installed mounting rack, aligning the case's base with the rack's attachment points.
- Press Down: Press down firmly on the top case until you hear a click, indicating it is securely latched onto the rack.
- Lock Case: Use the key to lock the top case to the mounting rack. This prevents accidental release and provides security.

Image: The SHAD SH58X Carbon Top Case securely mounted on the rear of a motorcycle, demonstrating its integrated appearance.
5. Operating Instructions
5.1. Opening and Closing the Top Case
- To Open: Insert the key into the lock cylinder and turn it to the "OPEN" position. Press the release button located near the lock to unlatch the lid. Lift the lid upwards.
- To Close: Lower the lid until it clicks firmly into place. Turn the key to the "LOCK" position to secure the lid. The case can be closed without the key, but it must be locked with the key for security.
5.2. Adjusting the Volume (Expandable Feature)
The SH58X features a unique three-position adjustable volume system:
- Position L (46 Liters): Compact mode for daily use.
- Position XL (52 Liters): Intermediate mode for increased capacity.
- Position XXL (58 Liters): Maximum capacity, ideal for two full-face helmets or larger items.
To adjust the volume:
- Unlock and Open: Ensure the top case is unlocked and the lid is open.
- Locate Internal Levers: Inside the top case, locate the two red levers on either side of the base.
- Adjust Height: Pull the levers upwards to release the internal mechanism. While holding the levers, gently lift or push down the top section of the case to select the desired height (L, XL, or XXL).
- Secure Levers: Release the levers, ensuring they click back into place to secure the chosen volume setting.

Image: The SHAD SH58X Carbon Top Case with its lid open, demonstrating its spacious interior capable of holding two full-face helmets.

Image: Close-up of the internal red lever mechanism used to adjust the expandable volume of the top case.
5.3. Detaching the Top Case from the Rack
- Unlock Case: Ensure the top case is unlocked from the mounting rack using the key.
- Locate Release Button: Press the main release button, typically located near the lock cylinder on the front of the case.
- Lift Case: While holding the button, lift the top case upwards and away from the mounting rack.
6. Maintenance and Care
- Cleaning: Clean the exterior of the top case with a soft cloth and mild soap and water. Avoid abrasive cleaners or solvents that could damage the finish.
- Lubrication: Periodically lubricate the lock mechanism and hinges with a silicone-based lubricant to ensure smooth operation.
- Inspection: Regularly inspect all mounting hardware for tightness. Re-tighten any loose bolts to prevent vibration and potential detachment.
- Storage: When not in use, store the top case in a cool, dry place away from direct sunlight to prevent material degradation.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Top case does not expand fully or one side is stuck. | Internal mechanism may be misaligned or obstructed. | Ensure both internal red levers are fully disengaged when attempting to adjust height. Check for any obstructions inside the case that might prevent expansion. Gently apply even pressure when expanding. |
| Release button for opening or detaching does not work. | Lock mechanism may be stiff or jammed; button linkage obstructed. | Ensure the key is fully turned to the "OPEN" position. Apply a small amount of silicone lubricant to the lock cylinder and button mechanism. Press the button firmly and evenly. If the issue persists, contact customer support. |
| Top case wobbles on the mounting rack. | Mounting hardware is loose or incorrectly installed. | Check all bolts securing the mounting rack to the motorcycle and the top case to the rack. Tighten any loose fasteners. Ensure the top case is fully latched and locked onto the rack. |
| Water ingress into the top case. | Lid not properly closed or seal is damaged. | Ensure the lid is firmly closed and clicks into place all around. Inspect the rubber seal along the lid's edge for any cracks or damage. Replace the seal if necessary. |
8. Specifications
| Attribute | Detail |
|---|---|
| Model | SH58X Carbon (D0B58206) |
| Brand | Shad |
| Capacity | 46 Liters (L), 52 Liters (XL), 58 Liters (XXL) |
| Product Dimensions (L x W x H) | 24.41" x 19.29" x 12.99" (61cm x 48cm x 27-31.5cm adjustable height) |
| Item Weight | 17.51 pounds |
| Material | High-impact resistant plastic with carbon finish |
| Color | Black with Carbon finish |
| Closure Type | Key-operated Locking Mechanism |
| Mounting Type | Requires specific SHAD mounting kit (sold separately) |
9. Warranty and Support
For warranty information, technical support, or to purchase replacement parts, please contact SHAD customer service through their official website or authorized distributors. Keep your purchase receipt as proof of purchase for warranty claims.
Manufacturer: SHAD
OEM Part Number: D0B58206





