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We offer a 14-day return and exchange policy from the date you receive your item. Items must be unused, undamaged, with tags attached, in original packaging, and accompanied by proof of purchase.
We cover return shipping for quality issues, defective, damaged, or incorrect items, size-related returns, oversized items such as roof racks, and approved exchanges. For other personal-reason returns, the customer is responsible for return shipping.
For full order cancellations within 14 days, the original standard delivery cost will be refunded. Partial returns generally do not include a refund of the original delivery cost.
Refunds will be processed within 5–7 business days after we receive and inspect your return. Please contact us before returning any item. For questions, email service@rockbrossport.co.uk.
Estimated delivery time

Ride confidently in any weather with the ROCKBROS AS-151 Waterproof Top Tube Bag. Compact yet practical, this 1L frame bag keeps your essentials safe and accessible, combining waterproof protection, durable construction, and a streamlined design for comfortable cycling.
High-frequency seamless welding and waterproof fabric ensure your items stay dry in rain or wet conditions.
Maintains a firm shape, preventing collapse and protecting contents from pressure or impact.
Slim profile fits closely to the bike frame, avoiding leg contact and improving ride comfort.
Quickly access keys, tools, phone, or energy bars during rides with an easy top-opening zipper.
High-visibility reflective elements improve safety during low-light and night cycling.
Adjustable Velcro straps allow fast and secure mounting or removal without any tools.
Perfect for daily essentials, keeping your items organized without adding bulk.
| Material | 30% Nylon + 70% Polyester |
|---|---|
| Support Plate | PP (Polypropylene) |
| Capacity | ≈1L |
| Weight | ≈109g (with straps) |
| Mounting Position | Top Tube |
| Attachment | Adjustable Velcro Straps |
| Features | Waterproof, Slim, Reflective Logo, Tool-Free Installation |
| Compatible With | Road, Gravel, and Mountain Bikes |
Why You’ll Love It:
Sleek, weatherproof, and built to last — the ROCKBROS AS-151 keeps your essentials safe while you focus on the ride. Whether it’s your daily commute or a long-distance cycling trip, this compact top tube bag ensures comfort, performance, and protection.





Ride confidently in any weather with the ROCKBROS AS-151 Waterproof Top Tube Bag. Compact yet practical, this 1L frame bag keeps your essentials safe and accessible, combining waterproof protection, durable construction, and a streamlined design for comfortable cycling.
High-frequency seamless welding and waterproof fabric ensure your items stay dry in rain or wet conditions.
Maintains a firm shape, preventing collapse and protecting contents from pressure or impact.
Slim profile fits closely to the bike frame, avoiding leg contact and improving ride comfort.
Quickly access keys, tools, phone, or energy bars during rides with an easy top-opening zipper.
High-visibility reflective elements improve safety during low-light and night cycling.
Adjustable Velcro straps allow fast and secure mounting or removal without any tools.
Perfect for daily essentials, keeping your items organized without adding bulk.
| Material | 30% Nylon + 70% Polyester |
|---|---|
| Support Plate | PP (Polypropylene) |
| Capacity | ≈1L |
| Weight | ≈109g (with straps) |
| Mounting Position | Top Tube |
| Attachment | Adjustable Velcro Straps |
| Features | Waterproof, Slim, Reflective Logo, Tool-Free Installation |
| Compatible With | Road, Gravel, and Mountain Bikes |
Why You’ll Love It:
Sleek, weatherproof, and built to last — the ROCKBROS AS-151 keeps your essentials safe while you focus on the ride. Whether it’s your daily commute or a long-distance cycling trip, this compact top tube bag ensures comfort, performance, and protection.





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