1. Introduction
Thank you for choosing the NEWBOLER Portable Waterproof Bike Fork Bag 7L. This versatile and durable bag is designed to provide secure and waterproof storage for your essentials during cycling and e-scooter rides. Featuring a robust construction and easy installation, it's an ideal companion for both short trips and extended tours.
The bag is constructed from 600D nylon with welded seams using high-frequency technology, ensuring it is 100% waterproof. The outer PU (polyurethane) coating allows for quick drying, while the inner TPU (thermoplastic polyurethane) coating, combined with sealed seams, guarantees complete waterproofing. The bottom of the bag is reinforced with double-layered 840D nylon for enhanced strength and protection against wear and tear. It features a convenient roll-top lid and offers a generous 7-liter capacity.
2. Package Contents
Please verify that all the following items are included in your package:
- 1x 7L Waterproof Bag
- 1x Front Fork Bracket (Mounting Seat)
- Plastic Straps (Zip Ties)
- Nylon Straps (for securing the bag)
- 1x Allen Key (Screw Plate Handle)
- Plastic Screws (for bracket assembly, if applicable)
- Strap-on Accessories (additional zip ties)

3. Specifications
| Feature | Detail |
|---|---|
| Brand | NEWBOLER |
| Product Type | Bicycle Fork Bag / Wheel Bag |
| Model Number | BAG204 |
| Bag Material | Nylon 600D (outer PU coating), inner TPU coating, double-layered 840D nylon bottom |
| Color | Black |
| Bag Capacity | 7 Liters |
| Bag Dimensions | Approximately 53 x 15 x 15 cm (20.87 x 5.91 x 5.91 inches) |
| Mount Material | Engineering Grade Polymer |
| Mount Dimensions | Approximately 21 x 12 cm (8.27 x 4.72 inches) |
| Mount Weight Capacity | Up to 130 kg |
| Features | 100% Waterproof, Wear-resistant, Large capacity, Easy to carry, Easy to clean |
| Certification | CE |
| Origin | Mainland China |

4. Compatibility
The NEWBOLER Bike Fork Bag is designed for broad compatibility with various bicycle types and e-scooters. Its 3-point fixing adjustable band-clamps allow for secure attachment to:
- Mountain Bikes
- Off-Road / Road Bikes
- E-Scooters
- Touring Bikes
The mounting bracket can be screwed onto a fork (if appropriate) or a bottle holder on a bicycle frame. It is suitable for any type of fork, including those with threads and dampers, making it a highly versatile accessory.


5. Installation Guide
Follow these steps for easy installation of your NEWBOLER Bike Fork Bag:
- Prepare the Bracket: Place the provided nylon straps into the designated slots on the front fork bracket.
- Attach the Bracket: Position the bracket on the front fork of your bicycle or e-scooter. Use the plastic straps (zip ties) to securely fasten the bracket to the fork. Ensure a snug fit to prevent movement.
- Tighten Fasteners: Use the Allen key to tighten any screws or zip ties to ensure the bracket is firmly attached and will not shake during riding. The bracket uses 3 fixed points for stability.
- Insert the Bag: Place the 7L waterproof bag into the corresponding position within the installed bracket.
- Secure the Bag: Thread the nylon straps through the middle of the bag and around the bracket.
- Final Tightening: Tighten the strap buckles to firmly secure the bag to the bracket. Ensure the bag is stable and does not interfere with wheel movement or braking.


Video 5.1: Demonstration of the NEWBOLER bike fork bag installation and features.
6. Operating Instructions
6.1 Attaching the Bag
Once the bracket is securely installed, the waterproof bag can be easily inserted and secured using the provided nylon straps and buckles. Ensure the roll-top closure is properly sealed to maintain waterproofing.
6.2 Capacity and Access
The 7L capacity allows for carrying various items such as water bottles, small sleeping bags, tools, or other essentials. The large opening design facilitates easy access to your belongings.

6.3 Waterproofing
The bag is made from Nylon 600D with an outer TPU (polyurethane) coating, making it 100% waterproof. Always ensure the roll-top closure is tightly rolled and buckled to prevent water intrusion, especially in rainy conditions.

6.4 Multi-Purpose Mounting
The bracket can be used not only on the front fork but also on the rear fork or front bar, offering flexibility in how you carry your gear. The cage can also be used independently to carry other items like water bottles or camping mats using its built-in straps with durable YKK buckles.

7. Maintenance
To ensure the longevity and performance of your NEWBOLER Bike Fork Bag, follow these maintenance guidelines:
- Cleaning: The bag is easy to clean. Wipe it down with a damp cloth and mild soap. Do not use harsh chemicals or abrasive cleaners, as this may damage the waterproof coating.
- Drying: After cleaning or exposure to rain, ensure the bag is completely dry before storing to prevent mold or mildew.
- Storage: Store the bag in a cool, dry place away from direct sunlight when not in use.
- Inspect Straps and Buckles: Periodically check all straps, buckles, and mounting points for any signs of wear or damage. Replace any worn components to ensure secure attachment.
8. Troubleshooting
If you encounter any issues with your bike fork bag, consider the following:
- Bag feels loose: Re-check all mounting straps and zip ties. Ensure they are tightened securely. The 3-point fixing system should be snug against the fork.
- Water leakage: Ensure the roll-top closure is properly rolled down at least three times and the buckles are securely fastened. Check for any visible tears or punctures in the bag material.
- Difficulty attaching: Verify that your bike fork or frame has suitable points for attachment. The universal design should fit most forks, but some unique designs may require adjustments.
For persistent issues, please contact customer support.
9. User Tips
- When packing, distribute weight evenly to maintain bike balance, especially when using two bags on the front fork.
- For maximum waterproofing, ensure the roll-top is sealed correctly and the buckles are clipped.
- The mounting bracket can also be used to carry other items like water bottles or camping mats directly, even without the bag, thanks to its integrated straps.
10. Warranty and Support
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims, technical support, or any questions regarding your NEWBOLER Bike Fork Bag, please refer to the seller's contact information or the platform's customer service portal.