---
product_id: 128275069
title: "ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag Approx. 3 Litres for Cycling Accessories"
brand: "rockbros"
price: "฿3421"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/128275069-rockbros-bike-frame-bag-waterproof-bike-triangle-bag-bicycle-under
store_origin: TH
region: Thailand
---

# Double-sided reflective logos 95% water resistance Rigid bottle plate for shape retention ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag Approx. 3 Litres for Cycling Accessories

**Brand:** rockbros
**Price:** ฿3421
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear Up, Ride Dry, Stand Out!

## Quick Answers

- **What is this?** ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag Approx. 3 Litres for Cycling Accessories by rockbros
- **How much does it cost?** ฿3421 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/128275069-rockbros-bike-frame-bag-waterproof-bike-triangle-bag-bicycle-under)

## 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

- • **Ride Rain or Shine:** 95% water-resistant 840D nylon keeps your gear dry no matter the weather.
- • **Spacious Yet Sleek:** 3L capacity fits essentials without bulk—perfect for daily commutes or epic rides.
- • **Comfort Meets Safety:** Slim 6mm profile prevents leg rub while reflective logos boost nighttime visibility.
- • **Stay Organized On-the-Go:** Dual compartments with easy access for keys, phone, and tools—never fumble mid-ride.
- • **Custom Fit, No Tools Needed:** Five adjustable straps and 11 mounting holes ensure a secure, tailored fit for most frames.

## Overview

The ROCKBROS Bike Frame Bag is a 3-liter, waterproof, and ergonomically designed storage solution crafted from durable 840D nylon. Featuring a rigid bottle plate to maintain shape, dual compartments for smart organization, and reflective logos for enhanced safety, it installs tool-free with adjustable straps to fit most bike frames. Ideal for cyclists seeking reliable, weatherproof storage without compromising comfort or style.

## Description

ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag Approx. 3 Litres for Cycling Accessories

## Features

- ULTIMATE WATER RESISTANCE: Crafted from rugged 840D nylon with advanced seamless heat-press technology, this frame bag achieves 95% water resistance to shield your gear from rain, splatters, and road spray. Spacious enough to store spare clothes, repair tools, energy bars, and essential cycling accessories—ride confidently even in downpours without worrying about wet valuables.
- DURABLE STRUCTURE & SMART ORGANIZATION: Reinforced with a rigid bottle plate, the bag maintains its shape and stays securely in place, preventing deformation and protecting contents from squeezing. Dual-side compartment design allows easy access to small items like keys, phone, or tire levers while riding, keeping your essentials organized and within reach.
- ERGONOMIC DESIGN FOR COMFORT & SAFETY: Slim 6mm profile eliminates leg rub during pedaling, ensuring a smooth ride. Double-sided reflective logos enhance visibility during low-light conditions, providing critical nighttime safety by alerting motorists—ride with peace of mind day or night.
- TOOL-FREE INSTALLATION & ADJUSTABILITY: Equipped with 5 hook-and-loop fasteners and 11 pre-drilled mounting holes, this bag offers flexible strap positioning to fit most bike frames. Customize the number and placement of straps for a snug, secure fit that adapts to your bike’s unique geometry.
- VERSATILE STORAGE WITH FIT NOTE: While designed for universal compatibility, note that it may interfere with front fenders, water bottle cages, or crank arms on some bike models—measure your frame’s clearance before installation to ensure a perfect fit. The dual-compartment layout maximizes storage without sacrificing accessibility, making it ideal for commutes and long rides alike.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Size | 3L |
| Brand | ROCKBROS |
| Material | Nylon |
| Vehicle Service Type | Bicycle |
| Product Dimensions | 15.95"L x 2.36"W x 4.92"H |
| Pattern | Solid |
| Mounting Type | Frame Mount |
| Strap Type | Removable |
| Capacity | 3 Liters |
| Closure Type | Zipper |
| Handle Type | Web Handle |
| Number of Compartments | 1 |
| Shell Type | Soft |
| Manufacturer | ROCK BROS |
| Automotive Fit Type | Vehicle Specific Fit |
| Item Weight | 6.4 ounces |
| Manufacturer Part Number | AS-043/1 |
| Special Features | Waterproof |

## Product Details

- **Color:** Black
- **Size:** 3L
- **Brand:** ROCKBROS
- **Material:** Nylon
- **Vehicle Service Type:** Bicycle

## Images

![ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag Approx. 3 Litres for Cycling Accessories - Image 1](https://m.media-amazon.com/images/I/61TBMM2LTIL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect E-bike controller bag!
*by D***N on October 31, 2022*

I bought this specifically hoping it would make a good bag for an ebike controller. I bought a front hub motor wheel kit to convert my bike to electric. It is the "old school" kit with a big controller with lots of wires for plugging in the various components. If you know what I am talking about you realize those are hard to contain cleanly just because the wires are numerous. This bag worked out perfectly - the controller and all the wires fit in nicely and best of all should you need to replace a component you just unzip the bag, find the wire you need and swap out the component (throttle, PAS etc.).The one thing I was not crazy about was the mounting straps they provided but a 1" Velcro One Wrap strap allows you to perfectly customize your length and gives you a very clean install. When I first tried out my ride I noticed the controller was bouncing a bit in the bag and rattling against the stiff bottom. I put some chunks of foam packing material under the controller and added a couple of cinch straps around the bag for extra security and now the setup works perfectly, holds everything inside cleanly and gave me a really clean looking install overall. The bag is nice quality and should last as long as I have the bike. I can't vouch for the waterproof aspect but I never feel great about having an ebike out in the rain anyway so unless I get caught in a surprise rainstorm I'll never worry about that.100% perfect for my intended use here. 5 stars all the way except for the mounting straps but the Velcro One Wrap works far better anyway.

### ⭐⭐⭐⭐⭐ Great Under-Boom Bag for Recumbent Trikes
*by O***O on August 14, 2025*

Have this Rock Bros frame bag mounted underneath the boom on my recumbent trike as I carry a large power pack that can recharge my phone for many hours/days. Also carry a cloth rag, gloves for when working with the chain, a chain tool. Room for more, with easy access.In my photos the main compartment is on the right side, while the thinner pocket is on the left side. The material can be cut to allow easy access from both side, as per the vendor's suggestion.The straps are plenty long enough for square or rectangular booms, even larger round booms. And I appreciate the low height of the bag so it does not catch on brush underneath. Can only want these to come in various colors as black is overdone. There are no elastic cording on the frame bag, only the orange bag from Rock Bros (above). ASIN B0D4YD4ZT8

### ⭐⭐⭐⭐ Very nice bag - may damage paint if not altered
*by C***Y on August 20, 2025*

The bag is sturdy and has plenty of space. It looks nice on my bike.The only downside is the straps are made of a strong, rigid material which can cause damage to the finish on your bike. I saw some other reviews with the aftermath of this. However, I hot glued some felt to the inside of the straps to prevent abrasions on my bike. (Pictured) It would be nice if the manufacturer did something like this. Or even just made one entire side the strap the soft loop of the Velcro.Anyway, I like the product but altered it to spare the paint on my frame.I wanted the 4L size but I’m glad I went with the 3L size due to the water bottle cages. The 3L is just the right size for not interfering with the bottle. (Pictured)

## Frequently Bought Together

- ROCKBROS Bike Frame Bag Waterproof Bike Triangle Bag Bicycle Under Top Tube Bag Corner Pouch Storage Bag for Cycling Accessories
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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-27*