---
product_id: 63921397
title: "ROCKBROS Top Tube Bike 840D Nylon Waterproof Bag Bicycle Front Frame Bag | Phone Accessories Pouch with Fiberboard Supports for MTB Road City Bike Compatible with Phone Under 6.8” (New Straps)"
brand: "rockbros"
price: "39657CFA"
currency: XOF
in_stock: true
category: "Rockbros"
url: https://www.desertcart.sn/products/63921397-rockbros-top-tube-bike-840d-nylon-waterproof-bag-bicycle-front
store_origin: SN
region: Senegal
---

# 1.6L high capacity 3-layer waterproof tech fiberboard reinforced durability ROCKBROS Top Tube Bike 840D Nylon Waterproof Bag Bicycle Front Frame Bag | Phone Accessories Pouch with Fiberboard Supports for MTB Road City Bike Compatible with Phone Under 6.8” (New Straps)

**Brand:** rockbros
**Price:** 39657CFA
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear up, stay dry, and ride in style with ROCKBROS’ ultimate top tube bag!

## Quick Answers

- **What is this?** ROCKBROS Top Tube Bike 840D Nylon Waterproof Bag Bicycle Front Frame Bag | Phone Accessories Pouch with Fiberboard Supports for MTB Road City Bike Compatible with Phone Under 6.8” (New Straps) by rockbros
- **How much does it cost?** 39657CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/63921397-rockbros-top-tube-bike-840d-nylon-waterproof-bag-bicycle-front)

## 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:** Abrasion-resistant fabric with fiberboard sidewalls resists deformation
- • **Tool-Free Setup:** Quick-install adjustable straps fit most MTB and road bikes effortlessly
- • **Ride Ready Storage:** Spacious 1.6L capacity fits all essentials from phone to power bank
- • **Weatherproof Warrior:** Triple-layer 840D nylon with sealed zipper keeps gear bone dry
- • **Comfort Meets Convenience:** Slim, ergonomic design avoids leg rub and rides smoothly

## Overview

The ROCKBROS Top Tube Bike Bag combines a durable 840D nylon shell with triple-layer waterproofing and fiberboard supports to offer a 1.6L capacity storage solution. Designed for MTB and road bikes, it features a slim profile that prevents leg interference and installs easily with adjustable straps, making it the perfect companion for professional cyclists seeking reliable, weatherproof gear storage.

## Description

desertcart.com: ROCKBROS Top Tube Bike 840D Nylon Waterproof Bag Bicycle Front Frame Bag | Phone Accessories Pouch with Fiberboard Supports for MTB Road City Bike Compatible with Phone Under 6.8” (New Straps) : Sports & Outdoors

## Features

- HIGH CAPACITY: 1.6L/1L capacity and extended design-size are big enough to store your wallet, energy gel, mobile phone, gloves, repair bike tool, power bank and so on
- EXTRAWATERPROOF: Three-layer waterproof material: 840D Nylon + Internal PP board +TPU material and sealed adhesive zipper, which ensure the water will not flow into the bag
- DURABLE & STEADY: The main material 840D nylon can be highly abrasion proof and durable. The sidewalls of the bag have fiberboard supports, so it is not easily deformed
- COMFORTABLE & CONVENIENT: The front bike bag has a long slim body. Proper space design makes you ride more smoothly and comfortable (It would not rubs against your legs while riding). And it's portable, you can take this bike pouch easily while leaving away from your bike
- EASY TO INSTALL: Adjustable hook and loop design, suit for more size MTB road bikes. Install and release the top tube bag quickly and without any tools（This product straps has recently been upgraded. Depending on inventory, you may receive either the original or the updated version. Both meet the same quality standards）

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CGLQ17Z |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #17,653 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Bike Pack Accessories |
| Brand Name | ROCKBROS |
| Capacity | 1 liters |
| Closure Type | Zipper |
| Color | Black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,431) |
| Handle Type | Web Handle |
| Item Dimensions L x W x H | 9.25"L x 8.48"W x 8.87"H |
| Manufacturer | ROCKBROS |
| Manufacturer Part Number | AS-019 |
| Material Type | Polyester + TPU |
| Model Number | AS-019 |
| Mounting Type | Frame Mount |
| Number of Compartments | 1 |
| Number of Items | 1 |
| Pattern | Solid |
| Shell Type | Hard |
| Size | 1L |
| Strap Type | Removable |
| Style Name | Minimalist |
| UPC | 663274740531 |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** ROCKBROS
- **Color:** Black
- **Material:** Polyester + TPU
- **Size:** 1L
- **Vehicle Service Type:** Bicycle

## Images

![ROCKBROS Top Tube Bike 840D Nylon Waterproof Bag Bicycle Front Frame Bag | Phone Accessories Pouch with Fiberboard Supports for MTB Road City Bike Compatible with Phone Under 6.8” (New Straps) - Image 1](https://m.media-amazon.com/images/I/71TVbBkpONL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Is the M big enough to store my wallet and my iphone 8?**
A: Will easily hold that and surprisingly more. Also kept everything dry in downpour.

**Q: When I put my bike on my car bike rack will I need to remove the bag to put the straps over the cross bar?**
A: Yes you will have to remove any bar bags as they will interfere with most racks for mounting. You can always get around this by moving the bag to a different part of the bike but then you have to affix it back when riding for functionality.

**Q: I have the iphone 11 pro max, can i use this case to store this phone?**
A: I have the iPhone X and it just fits.  Based on what I now of your Phone, it is going to be close, maybe too close. I would look elswhere

**Q: Would the medium bag be too large for a child’s mountain bike?**
A: Childs department store bike with buzzliteyear on itn? No. Youth mountain bike? Yes. Should work just fine. Prolly make some kid real happy and turn them into a pro bikepacker. After all thats the key to adventure. Never grow up and always play in your planet!

## Frequently Bought Together

- ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium
- ROCKBROS Bike Seat Bag, Bicycle Saddle Bag Under Seat 3D Shell Cycling Seat Pack for Mountain Road Bikes Black
- WOTOW Bike Repair Tool Kit, 16 in 1 Bicycle Multitool with Tire Levers Hex Spoke Wrench, Multi Function Accessories Set for Road Mountain Bikes

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**Shop now:** [https://www.desertcart.sn/products/63921397-rockbros-top-tube-bike-840d-nylon-waterproof-bag-bicycle-front](https://www.desertcart.sn/products/63921397-rockbros-top-tube-bike-840d-nylon-waterproof-bag-bicycle-front)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-02*