🚴 Waterproof Bike Rack Bag with Expandable Storage – Fits Most Bike Racks

Stay prepared for any cycling adventure with our versatile and waterproof bike rack bag. Designed for everyday commuters and long-distance riders, this bag offers **expandable storage, tool-free mounting, and all-weather protection**—perfect for mountain bikes, e-bikes, road bikes, gravel bikes, and more.

👜 Spacious Yet Compact – 0.4L + Expandable Side Pockets

The main compartment provides **up to 0.4L** of storage—ideal for your pump, cable lock, repair kit, phone, jacket, and other cycling essentials. Need more room? Just unzip the expandable side compartments to increase capacity when needed.
Plus, the **elastic bungee cords** on top offer additional space to secure items like a water bottle, gloves, or snacks on the go.

🌧️ 100% Waterproof Material – Ride Rain or Shine

Constructed with **premium waterproof fabric**, this rear rack bike bag keeps your gear dry and protected. It's also **lightweight, scratch-resistant, and easy to clean**—perfect for all-weather riders. Don't let the rain stop your ride!

🔧 Tool-Free Installation – Universal Fit for Most Bikes

Equipped with a **strong adjustable Velcro strap**, this bike trunk bag can be securely mounted to your rear bike rack in seconds—no tools required. The strap is compatible with most rack types, making it suitable for:

• ✔ Mountain Bikes
• ✔ Road Bikes
• ✔ Electric Bikes
• ✔ Hybrid & Gravel Bikes

Ride safely in low-light conditions. The integrated reflective strips enhance visibility at night or during foggy mornings. There’s also a built-in hook for attaching a rear bike light, giving you double-layered protection on nighttime rides.

📦 What’s Included

• 1x Waterproof Bike Rear Rack Bag
• Adjustable Velcro Mounting Strap
• Reflective Safety Strips
• Expandable Side Storage Compartments