---
product_id: 118320958
title: "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 Biking Accessories Gear"
brand: "rockbros"
price: "$136.16"
currency: USD
in_stock: true
category: "Rockbros"
url: https://www.desertcart.us/products/118320958-bike-rack-bag-bicycle-bag-trunk-rear-rack-bag-bike
store_origin: US
region: United States of America
---

# 13L expandable capacity Waterproof rain cover included Secure multi-strap rack attachment 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 Biking Accessories Gear

**Brand:** rockbros
**Price:** $136.16
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear up, stand out, and never miss a ride!

## Quick Answers

- **What is this?** 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 Biking Accessories Gear by rockbros
- **How much does it cost?** $136.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/118320958-bike-rack-bag-bicycle-bag-trunk-rear-rack-bag-bike)

## 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

- • **Safety First:** Reflective straps and taillight compatibility boost your visibility for safer night rides.
- • **Built to Protect:** Thick foam padding keeps your gear safe and bag shape intact, no matter the load.
- • **Ride Rain or Shine:** Comes with a waterproof rain cover to keep your essentials dry during unexpected downpours.
- • **Spacious & Organized:** 13L main compartment with removable board plus fold-out side pockets for ultimate storage flexibility.
- • **Universal Fit & Rock-Solid:** Adjustable straps and buckles ensure a snug, no-shift fit on any bike rack, from e-bikes to fat bikes.

## Overview

The ROCKBROS Bike Rack Bag is a versatile 13L trunk bag designed for cyclists who demand organization, protection, and safety. Featuring multiple compartments, expandable side pockets, thick foam padding, and a waterproof rain cover, it fits universally on most bike racks and includes reflective straps plus taillight compatibility for enhanced night visibility.

## Description

Buy 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 Biking Accessories Gear: Panniers & Rack Trunks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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
- WATERPROOF RAIN COVER： The product comes with a waterproof rain cover and a carrying strap. There is no need to worry about waterproofing. In case of light rain or even heavy rain, you can choose to use a waterproof rain cover to achieve the waterproof effect.
- 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 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 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #10,243 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #7 in Bike Panniers & Rack Trunks |
| Brand Name | ROCKBROS |
| Capacity | 13 Liters |
| Closure Type | Drawstring |
| Color | black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,653) |
| Handle Type | Web Handle |
| Item Dimensions L x W x H | 13.9"L x 6.6"W x 6.4"H |
| Manufacturer | ROCK BROS |
| Manufacturer Part Number | A9-BK |
| Material Type | Polyester |
| Model Number | A9-BK |
| Mounting Type | Rack Mount |
| Number of Compartments | 1 |
| Pattern | Solid |
| Shell Type | Soft |
| Size | small |
| Strap Type | Adjustable |
| Style Name | Expandable Bags |
| Unit Count | 1 Count |

## Product Details

- **Brand:** ROCKBROS
- **Color:** black
- **Material:** Polyester
- **Size:** small
- **Vehicle Service Type:** Bicycle

## Images

![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 Biking Accessories Gear - Image 1](https://m.media-amazon.com/images/I/71LMuwVgDBL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## 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.

## 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
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-09*