Bike Frame Bag, Magnetic 1s Release Bike Top Tube Bag for Phone & Storage

Designed for cyclists who value efficiency and convenience, this bike bag combines magnetic quick-release, water-resistant materials, and a phone viewing window in one streamlined package. The 7.5" x 4.3" x 4" top tube bike bag offers 1.3L storage for multi-tools, mini pumps, keys, snacks, and smartphones, keeping your pockets empty and your focus on the road. Its mounting system uses a high-strength base with dual anti-slip rubber straps that fit round frame tubes from 12mm to 45mm, ensuring a rock-solid hold. The bag locks onto the base with auto-engaging magnets and releases with a one-touch side button, letting you grab this bicycle storage bag instantly. The EVA shell with TPU-sealed water-repellent zippers protects against light rain and splashes, while the soft lining touches comfortable. A 6.9" x 3.3" TPU transparent window lets you view GPS and operate your phone without unzipping. This bicycle frame bag keeps your gear secure, dry, and accessible for every ride. Please measure your tube diameter before purchase and avoid overloading heavy items that may shift on steep terrain.

• 【Compact Yet Spacious Storage】With a streamlined rectangular design measuring 7.5" x 4.3" x 4" and offering 1.3 liters of capacity, this bike frame bag comfortably holds ride essentials such as multi-tools, mini pumps, keys, energy bars, and smartphones. It keeps your pockets empty and your gear organized, allowing for better aerodynamics and a more comfortable, distraction-free cycling experience.
• 【Magnetic Quick-Release Mouting System】This bike top tube bag features an innovative magnetic auto-lock mounting system that securely connects the base to the bike bag with a satisfying click. The sturdy base is constructed from high-strength composite material, paired with dual anti-slip rubber straps that firmly wrap around your bike frame to eliminate wobbling during rides. To detach, simply press the side release button for one-second removal, allowing you to take all your essentials with you conveniently when you step away from your bike.
• 【Water-Resistant Construction】Crafted from premium EVA shell material with TPU-sealed water-repellent zippers, this bicycle storage bag offers excellent protection against light rain and accidental splashes, keeping your gear dry throughout daily commutes or weekend trails. The soft microfiber edges and plush interior lining provide a comfortable feel. Please note this is water-resistant, not waterproof, so avoid full submersion.
• 【Built-in Transparent Phone Window】Equipped with a large 6.9" x 3.3" TPU transparent touchscreen window, this bike phone bag lets you view navigation maps and operate your phone without opening the bag. The responsive film allows smooth touch interaction, so you can check routes or important notifications mid-ride while keeping your device protected from dust and light moisture.
• 【Universal Fit & Usage Tips】The mounting base fits round frame tubes with diameters from 0.55 to 1.77 inches (12–45mm), making this magnetic quick release bike bag compatible with most standard bicycles including road, mountain, and commuter bikes. For optimal performance, avoid overloading heavy items that may shift on steep terrain, as excessive movement could affect balance and riding stability. Always check your tube size before purchase to ensure a perfect fit.