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We offer a 14-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.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@rockbrossport.co.uk
Estimated delivery time
100% Waterproof Protection
Designed with high-frequency seamless welding technology, this bike frame bag offers reliable waterproof performance. Whether you're riding in rain, mud or wet conditions, your belongings stay dry and protected. Ideal for daily commuting, long rides and outdoor cycling adventures.
Magnetic Quick-Access Flap
The innovative magnetic flap allows you to open the bag with a simple pull and close it effortlessly with one hand. Unlike traditional zips, the magnetic closure avoids rust, jamming or breakage while providing quick access during rides. Even on rough roads, the strong magnetic seal keeps the flap securely closed.
Wide Opening for Easy Access
The large flap opening makes it easy to store and organise your riding essentials. You can quickly see and grab items such as tools, snacks or small accessories without searching around inside the bag.
Secure Knob Tightening System
Equipped with a convenient knob tightening mechanism and high-strength straps, the bag can be firmly secured to your bike frame. The adjustable design prevents movement on bumpy terrain while allowing quick installation or removal without tools. Compatible with various bike frame sizes.
Streamlined Narrow-Side Design
The slim, aerodynamic profile fits closely to the frame, preventing leg interference and avoiding contact with pedals. This streamlined design also helps reduce wind resistance, improving comfort and performance during high-speed rides.
Functions & Features



High-frequency seamless welding and 600D polyester laminated TPU. High-density and wear-resistant. Suitable for daily commut-ing and long-distance travel.
Easy to open and close without effort to unzip the zipper. Compared with traditional zippers. There is no need to worry about the risk of zipper rust and damage.
The magnetic clamshell fits tightly to prevent items from falling accidentally

Easy storage
Flip-cover large opening. Easily distinguish the location of the items in the bag, no need to rummage through

Knob tightening design
High-strength tie rope. Quick disassembly and assembly, say goodbye to cumbersome processes, easy and fast installation.

Pull the knob outward to release the tie rope

Pull out part of the tie rope to fit the handle and beam

Wrap the straps around the handle and beam and buckle into the buckle

Press down the knob and rotate clockwise to tighten


Road To Sky
600D polyester laminated with TPU
0.6L/0.9L
150g(0.6L)/170g(0.9L)
100% Waterproof
A: Yes. The bag uses high-frequency seamless welding technology to provide reliable waterproof protection. It keeps your belongings dry when riding in rain, mud or wet conditions.
A: No. The strong magnetic closure is designed to stay securely shut even on rough terrain. It allows quick one-hand access while preventing the bag from accidentally opening during rides.
A: Yes. The bag features a knob tightening system and adjustable straps that allow quick installation without tools. It can fit securely on most road bikes, mountain bikes and commuter bicycles.
A: The bag is perfect for carrying daily riding essentials such as your phone, repair tools, wallet, keys, energy bars or small cycling accessories.
A: No. The slim, streamlined side design fits closely to the bike frame and prevents leg interference, ensuring a comfortable riding experience.
A: Yes. The adjustable mounting system allows it to fit most bike frames, including road bikes, mountain bikes and many e-bikes.