---
product_id: 63921397
title: "ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium"
brand: "rockbros"
price: "VT18765"
currency: VUV
in_stock: true
reviews_count: 13
url: https://www.desertcart.vu/products/63921397-rockbros-bike-top-tube-bag-bicycle-front-frame-bag-waterproof
store_origin: VU
region: Vanuatu
---

# 0.9L large capacity TPU waterproof surface + zipper Tool-free adjustable hook & loop straps ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium

**Brand:** rockbros
**Price:** VT18765
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear Up, Ride On – Never Miss a Beat with ROCKBROS!

## Quick Answers

- **What is this?** ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium by rockbros
- **How much does it cost?** VT18765 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/63921397-rockbros-bike-top-tube-bag-bicycle-front-frame-bag-waterproof)

## 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

- • **Spacious Yet Sleek:** 0.9L capacity fits all essentials without bulk, keeping your ride streamlined.
- • **Knee-Friendly Design:** Slim, ergonomic shape prevents leg interference for smooth, comfortable pedaling.
- • **Ride-Proof Durability:** Abrasion-resistant polyester with stiff sidewalls ensures shape retention and long-lasting use.
- • **Quick-Release Convenience:** Tool-free adjustable straps let you install or remove your bag in seconds, hassle-free.
- • **Weather-Defying Waterproofing:** TPU surface and adhesive waterproof zipper keep your gear dry no matter the conditions.

## Overview

The ROCKBROS Bike Top Tube Bag is a durable, waterproof cycling accessory designed for mountain and road bikes. Featuring a 0.9-liter capacity, abrasion-resistant polyester, TPU waterproof surface, and easy tool-free installation, it offers a perfect blend of functionality and sleek design to keep your essentials secure and accessible on every ride.

## Description

desertcart.com: ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium : Sports & Outdoors

Review: Very functional & perfect amount of room - Was using under seat bags, which would not hold enough stuff including my phone. Also under seat bags tore my cycling pants a couple of times. This bag is great, probably not as aerodynamic but I will take functionality.
Review: Doesn't interfere with your legs - I ride 150 miles a week from commuting to workouts. Holds a lot for such a compact bag. It's well made, legitimately waterproof, durable and easy to clean.

## Features

- LARGE CAPACITY: The bike frame bag is big enough to store your wallet, energy gel, inner tube, mobile phone, gloves, repair bike tool, power bank and so on.
- DURABLE & STEADY: The main material Polyester can be highly abrasion proof and durable. Stiff sidewalls help the bag retain its shape, would be very steady. Don't worry about deformation
- WATERPROOF: Surface material of this frame bag is TPU material, and adhensive waterproof zipper. The bag inside would not be wet, you can have a cool riding
- COMFORTABLE & CONVENIENT: The front bike bag has a long slim body. Proper space design make you ride more smoothly and comfortable(Your knees will not hit the frame bike bag easily). 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 |
| Best Sellers Rank | #18,415 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10 in Bike Pack Accessories |
| Brand Name | ROCKBROS |
| Capacity | 0.9 Liters |
| Closure Type | Zipper |
| Color | Black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,397) |
| Handle Type | Web Handle |
| Item Dimensions L x W x H | 9.25"L x 8.48"W x 8.87"H |
| Manufacturer | ROCKBROS |
| Material Type | Polyester, Thermoplastic Polyurethane (TPU) |
| Mounting Type | Frame Mount |
| Number of Compartments | 1 |
| Pattern | Solid |
| Shell Type | Hard |
| Size | 0.9L |
| Strap Type | Removable |
| Style Name | Minimalist |
| UPC | 663274740531 |

## Product Details

- **Brand:** ROCKBROS
- **Color:** Black
- **Material:** Polyester, Thermoplastic Polyurethane (TPU)
- **Size:** 0.9L
- **Vehicle Service Type:** Bicycle

## Images

![ROCKBROS Bike Top Tube Bag Bicycle Front Frame Bag Waterproof Bike Pouch Pack/Phone Bag Cycling Accessories Pouch for Mountain Road Bike Medium - 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!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very functional & perfect amount of room
*by E***M on February 21, 2026*

Was using under seat bags, which would not hold enough stuff including my phone. Also under seat bags tore my cycling pants a couple of times. This bag is great, probably not as aerodynamic but I will take functionality.

### ⭐⭐⭐⭐⭐ Doesn't interfere with your legs
*by H***E on October 22, 2025*

I ride 150 miles a week from commuting to workouts. Holds a lot for such a compact bag. It's well made, legitimately waterproof, durable and easy to clean.

### ⭐⭐⭐⭐ Almost Perfect, Except For It Shifting
*by D***E on March 29, 2019*

I was thrilled to finally get this because this type of bag is the only type that can actually fit on my MTB without it getting into the way. I can't have a saddle bag because I have a dropper, and when I drop my seat all the way, it gets really close to my rear tire, which will then rub when I'm on some narly techincals. Then my bike geometry is in such a way, I can't put one in the bike triangle..... since my shock gets in the way. Thus, this seemed like the perfect solution. To be honest it mostly works but I do have one gripe... PROS: - Large enough to put a ton of things in but not so large that it looks like a hiking back pack. - Good solid material. Took on rain and mud and it held up. - Solid velcro straps. They strap and don't come lose. CONS: - This is where I'm bummed. While the straps are great and keep it in place (mostly), the bottom strap, that straps to the top tube is not very well designed. The strap itself simply slides through a couple of slits on the bottom of the bag, which means, it slides around. Even with the strap tight and firm in place, with just enough force, you can shift the bag left / right. I experienced this on every ride thus far where I'd make sudden turns, or quick endo's , or take really fast burms.... think of the effect of a Centripetal force. So what happens basically is the bag is now greatly shifted to one side off the top tube, which causes to slighly slag downward, which then gets bumped by my knee. Sucky!

## 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
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**Shop now:** [https://www.desertcart.vu/products/63921397-rockbros-bike-top-tube-bag-bicycle-front-frame-bag-waterproof](https://www.desertcart.vu/products/63921397-rockbros-bike-top-tube-bag-bicycle-front-frame-bag-waterproof)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*