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Shipping Fees:
We provide clear and detailed shipping fees based on the order amount and shipping method:
- Standard Shipping:
- Order Amount Below $29: Shipping Fee - $4.99
- Delivery Time: 3-4 business days
- Free Shipping:
- Order Amount $29 and over: Free 📦
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.

FEATURES
Description
Waterproof Compression Bag for Bikepacking 6L/12L
- 4-in-1 Waterproof Fabric: Durable mesh material that’s waterproof, wear-resistant, lightweight, and built to last for tough rides.
- Ultra-Light & Compact: Weighs only 109g (6L) or 147g (12L), helping you save space and reduce bike load on long trips.
- Quick Air-Release System: No pump needed; simply press the valve to expel air and compress the bag for easy storage.
- Multi-Position Mounting: Securely attaches to your handlebar or saddle with reinforced webbing loops for flexible setup.
- Ideal for Outdoor Adventures: Perfect for camping, weekend tours, and short cycling trips, keeping your gear dry and organized.
Waterproof & Lightweight Tail Bag Extension Bracket for Bikepacking
- Secure Three-Point Stability: This tail bag extension rack uses a reinforced three-point fixing system to distribute weight evenly, keeping your load stable and secure. Whether you¡¯re tackling bumpy trails, gravel roads, or daily commutes, your gear stays firmly in place without swaying.
- Adjustable Capacity: Designed with extended straps at the sides and rear, the rack easily adapts to various setups and bag shapes. It supports tail bags up to 12L and 54cm long, making it ideal for bikepacking trips and everyday use. Quick-release buckles let you attach or remove your gear in seconds.
- Durable & Easy to Maintain: Built from a rugged PP board, the rack is tough enough for demanding rides and wipes clean effortlessly after mud, dust, or rain. Extra protective pads safeguard your bike frame from scratches, ensuring long-term reliability and a clean look.
- Universal Fit: Engineered for versatility, this rear rack fits most road bikes and mountain bikes. A minimum saddle post clearance of 12cm is required for proper installation, making it suitable for a wide range of riders and setups.
- Lightweight Adventure-Ready Design: Weighing just 284g, this extension rack won¡¯t slow you down. Its ultralight design makes it perfect for long-distance bikepacking, weekend touring, or daily commuting¡ªanywhere you need reliable gear support without extra bulk.

Waterproof Compression Bag for Bikepacking 6L/12L
- 4-in-1 Waterproof Fabric: Durable mesh material that’s waterproof, wear-resistant, lightweight, and built to last for tough rides.
- Ultra-Light & Compact: Weighs only 109g (6L) or 147g (12L), helping you save space and reduce bike load on long trips.
- Quick Air-Release System: No pump needed; simply press the valve to expel air and compress the bag for easy storage.
- Multi-Position Mounting: Securely attaches to your handlebar or saddle with reinforced webbing loops for flexible setup.
- Ideal for Outdoor Adventures: Perfect for camping, weekend tours, and short cycling trips, keeping your gear dry and organized.
Waterproof & Lightweight Tail Bag Extension Bracket for Bikepacking
- Secure Three-Point Stability: This tail bag extension rack uses a reinforced three-point fixing system to distribute weight evenly, keeping your load stable and secure. Whether you¡¯re tackling bumpy trails, gravel roads, or daily commutes, your gear stays firmly in place without swaying.
- Adjustable Capacity: Designed with extended straps at the sides and rear, the rack easily adapts to various setups and bag shapes. It supports tail bags up to 12L and 54cm long, making it ideal for bikepacking trips and everyday use. Quick-release buckles let you attach or remove your gear in seconds.
- Durable & Easy to Maintain: Built from a rugged PP board, the rack is tough enough for demanding rides and wipes clean effortlessly after mud, dust, or rain. Extra protective pads safeguard your bike frame from scratches, ensuring long-term reliability and a clean look.
- Universal Fit: Engineered for versatility, this rear rack fits most road bikes and mountain bikes. A minimum saddle post clearance of 12cm is required for proper installation, making it suitable for a wide range of riders and setups.
- Lightweight Adventure-Ready Design: Weighing just 284g, this extension rack won¡¯t slow you down. Its ultralight design makes it perfect for long-distance bikepacking, weekend touring, or daily commuting¡ªanywhere you need reliable gear support without extra bulk.
























































