--- product_id: 301088347 title: "Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes" brand: "rockbros" price: "4477490₫" currency: VND in_stock: true reviews_count: 5 category: "Rockbros" url: https://www.desertcart.vn/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter store_origin: VN region: Vietnam --- # 13L expandable capacity Secure multi-strap mounting Included rain cover Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes **Brand:** rockbros **Price:** 4477490₫ **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate your commute with the ultimate bike trunk bag—gear up, stand out, and never miss a ride! ## Quick Answers - **What is this?** Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes by rockbros - **How much does it cost?** 4477490₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter) ## Best For - rockbros enthusiasts ## Why This Product - Trusted rockbros brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Room to Roam:** Generous 13L main compartment with fold-out side pockets for ultimate organization and storage expansion. - • **Weather Warrior:** Comes with a dedicated rain cover to keep your gear dry no matter the forecast—commute confidently rain or shine. - • **Rock-Solid Stability:** Thick foam padding and multi-point Velcro plus buckle system ensure your bag stays perfectly balanced and secure on any bike rack. - • **Safety First, Always:** Reflective straps and taillight compatibility boost your visibility for safer night rides and urban commutes. - • **Grab & Go Convenience:** Includes a carry strap and water bottle holder with adjustable drawstring—perfect for quick strolls or bumpy rides without losing essentials. ## Overview The ROCKBROS Bike Trunk Bag offers a versatile 13L capacity with expandable side pockets, robust foam padding for shape retention, and a secure multi-strap mounting system compatible with all commuter bikes. Featuring a rain cover, reflective safety straps, and taillight attachment, it’s designed for durability, organization, and rider safety—making it the perfect companion for daily commutes and day rides. ## Description ROCKBROS Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes : desertcart.ae: Sporting Goods Review: Heaps of room in this bike bag Review: Durable and reliable ## Features - MULTIPLE COMPARTMENTS & EXTENSIBLE DOUBLE SIDE POCKETS: 13L Maximum capacity bike trunk bag main compartment with a removable board, and some inside pockets to help with a bit of organization for small things. Fold-out pockets on each side for expanded capacity to hold a lot of side items and incidentals. For a day ride or daily commute, this is a good choice - STABLE CONSTRUCTION & PROTECTION: Thicken foam pad fills the inside bottom and sides of the trunk bag for holding its shape and protecting your items. It will not collapse to one side or the other even if nothing is in it - PORTABLE: Package with the rain cover and the carry strap. You will want to take this trunk bag with you if you go on a stroll and don't need to worry about it being stolen. The water bottle holder with adjustable drawstring design are helpful for avoiding the water bottle fall out on a bumpy ride - REFLECTIVE STRAPS & COMPATIBLE WITH TAILLIGHT FOR SAFETY: Reflective straps on the bike luggage bag provides good visibility, the strap at the back for attaching rear light. You'll want to add some reflective items to ensure your safety if you're a night rider - EASY TO ATTACH & STAYS IN PLACE: 2 Velcro straps on the front of the rack, the 2 long straps going across the rack as well as 2 fixed buckle, it's fastened securely to the rack and doesn't shift. Bike rack bag fits for any racks, such as fat bikes, e-bikes and other commuter bikes ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PD2MP59 | | Best Sellers Rank | #57,366 in Sporting Goods ( See Top 100 in Sporting Goods ) #22 in Bike Panniers & Rack Trunks | | Brand | ROCKBROS | | Brand Name | ROCKBROS | | Capacity | 13 Liters | | Closure Type | Zip, buckle | | Color | black | | Colour | black | | Compatible with Vehicle Type | Bicycle | | Customer Reviews | 4.5 out of 5 stars 2,497 Reviews | | Handle Type | Web Handle | | Manufacturer | ROCK BROS | | Material | Polyester | | Material Type | Polyester | | Mounting Type | Rack Mount | | Number of Compartments | 1 | | Pattern | Solid | | Pocket Description | Flap Pocket | | Shell Type | Soft | | Size | small | | Strap Type | Adjustable | | Style Name | Minimalist | | Unit Count | 1 Count | | Vehicle service type | Bicycle | ## Product Details - **Brand:** ROCKBROS - **Colour:** black - **Material:** Polyester - **Size:** small - **Vehicle service type:** Bicycle ## Images ![Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes - Image 1](https://m.media-amazon.com/images/I/71LMuwVgDBL.jpg) ## Questions & Answers **Q: Does this come with the rack to hold the back? Or is the rack a separate purchase?** A: The rack is a separate purchase. **Q: Does the rack come separately from bag and how do i get to look at those?** A: The rack is separate from the trunk bag ... you will need to look up racks compatible with your type of bike ... **Q: Main compartment internal dimensions please?** A: 13" L x 6" W x 5" H **Q: Can this rack work on a carbon seatpost?** A: Absolutely!! As long as you install cargo rack. So much room for a lot of stuff. You cant go wrong .enjoy your new bag. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Heaps of room in this bike bag *by I***M on 27 March 2025* ### ⭐⭐⭐⭐⭐ Durable and reliable *by J***G on 18 December 2025* ### ⭐⭐⭐⭐⭐ Good quality bike rack bag! *by D***N on 4 January 2026* ## Frequently Bought Together - ROCKBROS Bike Rack Bag Bicycle Bag Trunk Rear Rack Bag Bike Panniers Bike Accessories Basket Storage Luggage Saddle Shoulder Bag 13L for E bike, Bicycle With Rain Cover - ROCKBROS Bike Cargo Rack Rear Bike Rack Quick Release Bike Rack for Back of Bike Bike Luggage Cargo Rack Mountain Bike Rack Most 165lbs Capacity - Lamicall Bike Phone Holder, Motorcycle Phone Mount - Motorcycle Handlebar Cell Phone Clamp, Scooter Phone Clip for iPhone 15 Pro Max/Plus, 14 Pro Max, S9, S10 and More 4.7" to 6.8" Smartphones --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter](https://www.desertcart.vn/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*