Some pre-sale items are shipped via international express, which may result in longer delivery times and additional shipping fees. Exact details will be shown at checkout.
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
Designed for riders who need compact, all-weather storage, this waterproof bike top tube bag features a zipless magnetic closure for quick and reliable access. Its streamlined shape and smaller capacity make it ideal for minimalist setups, commuting, and performance-focused rides.
With a fully sealed construction and lightweight design, it offers dependable protection and convenience without adding bulk to your bike.
Built with advanced waterproof materials and seamless high-frequency welding, this top tube bag eliminates zippers completely, reducing the risk of water entry and keeping your belongings dry in all weather conditions.
The magnetic flap design allows quick and effortless opening with one hand while riding. Strong internal magnets ensure the flap stays securely closed even on rough terrain.
Available in two sizes, this bag is perfect for carrying essential items such as keys, tools, or energy gels while maintaining a lightweight and minimal setup.
Constructed with high-strength materials and reinforced with PP boards, the bag maintains its shape and provides reliable protection against daily wear and pressure.
The narrow and aerodynamic profile fits closely to the frame, reducing wind resistance and preventing contact with your legs during rides.
Equipped with high-adhesion hook and loop straps, the bag attaches firmly to the frame. The adjustable straps can be trimmed for a precise fit across different bike setups.
| Compatibility | Bicycle |
| Mounting | Strap Mount |
| Capacity | 0.6L / 0.9L |
| Strap Type | Hook & Loop |
| Closure | Magnetic |
| Handle | Strap |
| Weight | 0.16 kg |
Designed for riders who need compact, all-weather storage, this waterproof bike top tube bag features a zipless magnetic closure for quick and reliable access. Its streamlined shape and smaller capacity make it ideal for minimalist setups, commuting, and performance-focused rides.
With a fully sealed construction and lightweight design, it offers dependable protection and convenience without adding bulk to your bike.
Built with advanced waterproof materials and seamless high-frequency welding, this top tube bag eliminates zippers completely, reducing the risk of water entry and keeping your belongings dry in all weather conditions.
The magnetic flap design allows quick and effortless opening with one hand while riding. Strong internal magnets ensure the flap stays securely closed even on rough terrain.
Available in two sizes, this bag is perfect for carrying essential items such as keys, tools, or energy gels while maintaining a lightweight and minimal setup.
Constructed with high-strength materials and reinforced with PP boards, the bag maintains its shape and provides reliable protection against daily wear and pressure.
The narrow and aerodynamic profile fits closely to the frame, reducing wind resistance and preventing contact with your legs during rides.
Equipped with high-adhesion hook and loop straps, the bag attaches firmly to the frame. The adjustable straps can be trimmed for a precise fit across different bike setups.
| Compatibility | Bicycle |
| Mounting | Strap Mount |
| Capacity | 0.6L / 0.9L |
| Strap Type | Hook & Loop |
| Closure | Magnetic |
| Handle | Strap |
| Weight | 0.16 kg |
Learn more
