---
product_id: 301088347
title: "Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes"
brand: "rockbros"
price: "R2481"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Rockbros"
url: https://www.desertcart.co.za/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter
store_origin: ZA
region: South Africa
---

# 13L expandable capacity Waterproof rain cover included Secure multi-strap attachment Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes

**Brand:** rockbros
**Price:** R2481
**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?** R2481 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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

- • **Built to Last & Protect:** Thick foam padding maintains shape and shields your gear from bumps and shocks.
- • **Safety First, Always Visible:** Reflective straps and taillight compatibility ensure you stand out during night rides.
- • **Room for Everything, Organized:** 13L main compartment with removable board plus fold-out side pockets for ultimate storage flexibility.
- • **Ride Confidently, Rain or Shine:** Includes a durable rain cover and water bottle holder with adjustable drawstring to keep essentials dry and secure.
- • **Universal Fit, Rock-Solid Stability:** Multiple Velcro straps and buckles keep the bag firmly attached on any bike rack, from fat bikes to e-bikes.

## Overview

The ROCKBROS Bike Trunk Bag offers a versatile 13L expandable storage solution with multiple compartments and fold-out side pockets, reinforced by thick foam padding for durability and protection. Designed for commuters and day riders, it includes a waterproof rain cover, adjustable water bottle holder, reflective safety straps, and secure multi-strap attachment compatible with all bike racks. Lightweight at 721g, this bag combines practicality with safety and style for the modern cyclist.

## Description

ROCKBROS Bike Trunk Bag - Rear Carrier Bag with Rain Cover for Commuter Bikes : desertcart.ae: Sporting Goods

Review: Great rack bag - wish it had reflective on the rear. But really good quality.
Review: Love the roomy bag. Holds all essentials for a ride. Well made and good value for the $$

## 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 | #55,784 in Sporting Goods ( See Top 100 in Sporting Goods ) #19 in Bike Panniers & Rack Trunks |
| Brand | ROCKBROS |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,491) |
| Date First Available | 16 March 2019 |
| Item Weight | 721 g |
| Item model number | A9-BK |
| Manufacturer | ROCK BROS |
| Manufacturer Part Number | A9-BK |
| Product Dimensions | 35.31 x 16.76 x 16.26 cm; 721 g |

## 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

### ⭐⭐⭐⭐⭐ Review
*by I***M on 27 March 2025*

Great rack bag - wish it had reflective on the rear. But really good quality.

### ⭐⭐⭐⭐⭐ Review
*by J***G on 18 December 2025*

Love the roomy bag. Holds all essentials for a ride. Well made and good value for the $$

### ⭐⭐⭐⭐⭐ Review
*by D***N on 4 January 2026*

This well-made bag has come in very handy. I usually ride my bike to a local restaurant for lunch. I put ice packs, drinks, and storage containers in this for the trip over and fill up the storage containers with leftovers for the trip back. On our last trip, we stopped at the grocery store for a few items (steaks, heavy cream, 2 packs of frozen raspberries to name a few) and this bag held everything we needed.

## 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

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**Shop now:** [https://www.desertcart.co.za/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter](https://www.desertcart.co.za/products/301088347-bike-trunk-bag-rear-carrier-bag-with-rain-cover-commuter)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-22*