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- 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




Versatile for Multiple Scenarios
- Suitable for daily commuting, cycling outings, and long rides
- Maximizes rear seat space for easy storage of personal items
Large & Expandable Capacity
- Roll-top design allows on-demand expansion or contraction
- Main compartment with wide opening for easy access
- Capacity: approx. 16L (expanded), Weight: approx. 590g (with shoulder strap)
Full Waterproof Protection
- High-density waterproof coating + high-frequency seamless welding
- Rainstorm-grade waterproofing for all-weather cycling
- Waterproof zippers keep items dry
Stable Installation & Quick Release
- Velcro straps fit multiple rack widths
- Secure, non-slip attachment, easy to assemble or remove without tools
Portable Shoulder Strap
- Detachable and adjustable length for versatile carrying
- Convenient for carrying off-bike
Enhanced Night Safety
- Reflective LOGO for high visibility
- Can hang taillights (sold separately)
Durable Materials & Thoughtful Details
- Made of 600D polyester with TPU coating
- Side pockets for pumps and small items
- Tight buckle design, wear-resistant, easy to use
Compatible Bike Types
- Gravel road bikes, mountain bikes, road bikes




Versatile for Multiple Scenarios
- Suitable for daily commuting, cycling outings, and long rides
- Maximizes rear seat space for easy storage of personal items
Large & Expandable Capacity
- Roll-top design allows on-demand expansion or contraction
- Main compartment with wide opening for easy access
- Capacity: approx. 16L (expanded), Weight: approx. 590g (with shoulder strap)
Full Waterproof Protection
- High-density waterproof coating + high-frequency seamless welding
- Rainstorm-grade waterproofing for all-weather cycling
- Waterproof zippers keep items dry
Stable Installation & Quick Release
- Velcro straps fit multiple rack widths
- Secure, non-slip attachment, easy to assemble or remove without tools
Portable Shoulder Strap
- Detachable and adjustable length for versatile carrying
- Convenient for carrying off-bike
Enhanced Night Safety
- Reflective LOGO for high visibility
- Can hang taillights (sold separately)
Durable Materials & Thoughtful Details
- Made of 600D polyester with TPU coating
- Side pockets for pumps and small items
- Tight buckle design, wear-resistant, easy to use
Compatible Bike Types
- Gravel road bikes, mountain bikes, road bikes


