








AS-161 100% Waterproof Frame Bag 1L
- Free Shipping:📦
Shipping Info
- US Warehouse In-stock: 3–4 business days
- 🌍International Shipping (if US out of stock): 7–10 business days
🚲 Bicycle Shipping
Delivery Times:
- Standard: 40–60 business days
- Expedited: 18–20 business days
Shipping Fees:
- Small Bikes: $20 (Standard) | $70 (Expedited)
- Large Bikes: $100 (Standard) | $250 (Expedited)
No extra taxes. Choose the option that works best for you.
We offer a 30-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues. EU customers have a 14-day no-questions-asked return right. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email service@rockbrosbike.us.
At ROCKBROS, we offer a worry-free 1-year warranty to ensure your satisfaction. Whether it's a defect or product issue, simply reach out to us at service@rockbrosbike.us with your order details. We'll handle the rest to make sure your experience is smooth and hassle-free.

Product FEATURES
Waterproof Down Tube Bag – AS-16 Series
Enhance your ride with the AS-16 Series Waterproof Down Tube Bag, designed for all-weather performance and ultimate convenience. Whether you're commuting through city streets or exploring off-road trails, this versatile bag ensures your gear stays protected in any environment.
Key Features:
- Fully Waterproof Fabric: Constructed from high-quality waterproof polyester with seamless welding technology to keep your belongings dry, even in the harshest weather conditions.
- Roll-Top Closure: The adjustable roll-top design lets you customize the bag's capacity to fit different-sized items, ensuring easy access while on the go.
- Single Velcro Strap Installation: Featuring a wide, non-slip Velcro strap for easy, quick installation. Simply attach the bag to your bike’s down tube without any hassle.
- Multiple Placement Options: This bag offers multiple installation points, giving you the flexibility to mount it on your bike’s down tube, top tube, or other areas, depending on your preferences.
- Foam Structure for Stability: The foam construction at the back conforms to your bike frame, ensuring a snug, secure fit, while non-slip rubber strips keep the bag firmly in place during your ride.
- Compact Yet Spacious: With a 1L capacity, it provides just enough room to carry essentials like tools, snacks, and a small jacket, all while maintaining a low-profile on your bike.
- Durable & Lightweight: Made from strong, durable materials that offer long-lasting performance without adding unnecessary weight to your ride.
Versatile Fit: Compatible with a wide range of bike models, including road bikes, mountain bikes, and electric scooters, with simple, adaptable mounting options for various frame types.
The AS-16 Series Waterproof Down Tube Bag is your ideal companion for all your cycling adventures, offering exceptional durability, flexibility, and weatherproof protection to keep your gear safe and accessible.





Waterproof Down Tube Bag – AS-16 Series
Enhance your ride with the AS-16 Series Waterproof Down Tube Bag, designed for all-weather performance and ultimate convenience. Whether you're commuting through city streets or exploring off-road trails, this versatile bag ensures your gear stays protected in any environment.
Key Features:
- Fully Waterproof Fabric: Constructed from high-quality waterproof polyester with seamless welding technology to keep your belongings dry, even in the harshest weather conditions.
- Roll-Top Closure: The adjustable roll-top design lets you customize the bag's capacity to fit different-sized items, ensuring easy access while on the go.
- Single Velcro Strap Installation: Featuring a wide, non-slip Velcro strap for easy, quick installation. Simply attach the bag to your bike’s down tube without any hassle.
- Multiple Placement Options: This bag offers multiple installation points, giving you the flexibility to mount it on your bike’s down tube, top tube, or other areas, depending on your preferences.
- Foam Structure for Stability: The foam construction at the back conforms to your bike frame, ensuring a snug, secure fit, while non-slip rubber strips keep the bag firmly in place during your ride.
- Compact Yet Spacious: With a 1L capacity, it provides just enough room to carry essentials like tools, snacks, and a small jacket, all while maintaining a low-profile on your bike.
- Durable & Lightweight: Made from strong, durable materials that offer long-lasting performance without adding unnecessary weight to your ride.
Versatile Fit: Compatible with a wide range of bike models, including road bikes, mountain bikes, and electric scooters, with simple, adaptable mounting options for various frame types.
The AS-16 Series Waterproof Down Tube Bag is your ideal companion for all your cycling adventures, offering exceptional durability, flexibility, and weatherproof protection to keep your gear safe and accessible.







