---
product_id: 419342231
title: "ROCKBROS 2.5L Bike Triangle Frame Bag Waterproof Bikepacking Bag"
brand: "rockbros"
price: "€ 106.37"
currency: EUR
in_stock: true
reviews_count: 8
category: "Rockbros"
url: https://www.desertcart.hr/products/419342231-rockbros-2-5l-bike-triangle-frame-bag-waterproof-bikepacking-bag
store_origin: HR
region: Croatia
---

# 2.5L large capacity Water-repellent zipper Four secure mounting straps ROCKBROS 2.5L Bike Triangle Frame Bag Waterproof Bikepacking Bag

**Brand:** rockbros
**Price:** € 106.37
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear Up, Stand Out: The Ultimate Frame Bag for the Modern Cyclist

## Quick Answers

- **What is this?** ROCKBROS 2.5L Bike Triangle Frame Bag Waterproof Bikepacking Bag by rockbros
- **How much does it cost?** € 106.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/419342231-rockbros-2-5l-bike-triangle-frame-bag-waterproof-bikepacking-bag)

## 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

- • **Stay Dry, Ride On:** Innovative water-repellent zipper keeps essentials protected from rain without bulk.
- • **Pack More, Stress Less:** Generous 2.5L capacity fits all your daily ride essentials plus emergency tools.
- • **Versatile & Lightweight:** Universal fit for mountain, road, or city bikes at just 0.4 lbs—ride light, ride smart.
- • **Quick Access, Zero Hassle:** Side zipper pocket designed for effortless reach to your phone, keys, or snacks on the go.
- • **Tailored Fit for Every Ride:** Slim 2.4” profile and adjustable straps ensure a snug, no-bounce fit on any bike frame.

## Overview

The ROCKBROS 2.5L Bike Frame Bag combines water-repellent technology with a spacious 2.5-liter capacity, designed to securely mount under your bike’s top tube. Featuring a slim, aerodynamic profile and four adjustable straps, it offers a stable, no-interference fit for mountain, road, or city bikes. Ideal for professionals who demand both style and function, this lightweight nylon bag keeps your essentials dry and accessible during every ride.

## Description

Product description ROCKBROS Bike Frame Bag Waterproof Triangle Frame Bag 2.5L/4L ROCKBROS is an original cycling equipment brand, owned by a passionate team whose mission is to provide top-quality and comfortable products. We concentrate on explore the latest cycling trend and create the most functional equipment to all cyclists. Shop the full ROCKBROS line, Enjoy ROCKBROS, Enjoy Cycling! LARGE CAPACITY: This bike frame bag are big enough to hold phones, keys, wallet, glasses , power bank, snacks and some emergency tools with some room to spare. WATERPROOF BAG: This triangle bike bag are waterproof to keep your belongings dry in rainy days (Do not soak in the heavy rain). TWO SIZE BAG: We have 2.5L/4L two size bag for your choice, fits bikepacking, mountain bike, road bike or city touring riding. Cause the size are different, please measure your frame size before purchasing. 2.5L Capacity (11.8*7.5*11.8 inches) 4L Capacity (15.7*9*15.3 inches) Note: As the bag is larger than the usual frame bag, please measure your frame size then choose the right for you. LARGE SIDE OPENING One zipper on the left for easy to access your belongings. Two size bag 2.5L/4L fits most bikepacking, mountain bike, road bike or city touring riding. Hard Shell Inside Removable Strap Large Capacity

Review: Durable - Nice bag. Good fit on the bike and room for essentials. Easy to use.
Review: Great Bag - Water Bottle Issue. - Perfect size bag for long distance rides to throw a bunch of items in it. One major flaw - you cannot use two water bottles (on seat post and down tube). Only 1 water bottle will fit which is an issue unless you wish to make frequent water stops.

## Features

- Water - repellent BAG: This triangle frame bag are made with innovative seamless workmanship, equipped with Water - repellent zipper make this pouch Water - repellent, keep your belongings dry in rainy days (Do not soak in the heavy rain).
- LARGE CAPACITY: ROCKBROS bike frame bag are big enough to hold phones, keys, wallet, glasses , power bank, snacks and some emergency tools with some room to spare. Side zipper pocket are easy to access your items.
- 2.5L/4L TWO SIZE BAG: We have two size of triangle bike bag for your choice, 2.5L（11.8*7.5*11.8inches, about 0.4lbs）and 4L (15.7*9*15.3 inches, about 0.6lbs), fits bikepacking, mountain bike, road bike or city touring riding. As the frame bag is large than usual bag, please measure your frame size before you adding to cart.
- EASY TO MOUNT ON: Four mounting straps for installing under the bike top tube, stay in place and won’t move even on the rough roads, the slim body（2.4”wide）allows this bag to hide under the frame without worrying about interfering with pedaling.
- Please check your bike frame size then choose our 2.5L/4L frame bag

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Q372G2V |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #107,286 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #101 in Bike Pack Accessories |
| Brand | ROCKBROS |
| Brand Name | ROCKBROS |
| Capacity | 2.5 Liters |
| Closure Type | Zipper |
| Color | black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.0 out of 5 stars 84 Reviews |
| Handle Type | Web Handle |
| Item Dimensions L x W x H | 11.8"L x 7.5"W x 11.8"H |
| Item Type Name | Travel Accessory- Travel Container |
| Material | Nylon |
| Material Type | Nylon |
| Mounting Type | Frame Mount |
| Number of Compartments | 1 |
| Pattern | 5L |
| Product Dimensions | 11.8"L x 7.5"W x 11.8"H |
| Shell Type | Soft |
| Size | Medium-2.5L (Please CHECK the size) |
| Strap Type | Removable |
| Style Name | Bike Triangle Bag |
| Unit Count | 1 Count |
| Vehicle Service Type | Bicycle |

## Product Details

- **Color:** black
- **Size:** Medium-2.5L (Please CHECK the size)
- **Brand:** ROCKBROS
- **Material:** Nylon
- **Vehicle Service Type:** Bicycle

## Images

![ROCKBROS 2.5L Bike Triangle Frame Bag Waterproof Bikepacking Bag - Image 1](https://m.media-amazon.com/images/I/81g76BYdiML.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Durable
*by K***G on September 2, 2024*

Nice bag. Good fit on the bike and room for essentials. Easy to use.

### ⭐⭐⭐⭐ Great Bag - Water Bottle Issue.
*by C***A on March 22, 2025*

Perfect size bag for long distance rides to throw a bunch of items in it. One major flaw - you cannot use two water bottles (on seat post and down tube). Only 1 water bottle will fit which is an issue unless you wish to make frequent water stops.

### ⭐⭐⭐⭐⭐ The quality is exceptional.
*by W***� on April 27, 2025*

I’m super thrilled with this product. I have found that everything I have purchased from Rockbros is the best. It was a perfect fit.

## Frequently Bought Together

- ROCKBROS 5L Bike Bicycle Frame Bag Waterproof Bikepacking Bike Bag Triangle Frame Bag Large Bike Storage Bag Under Frame 5L
- ROCKBROS Bikepacking Bag Waterproof Bike Saddle Bag Large Capacity Bikepacking Seat Bag Road Mountain Bike Seat Bag Max 14L
- ROCKBROS Bikepacking Bike Handlebar Bag 7L-14L Waterproof Large Dry Pack Bicycle Front Bag Roll for MTB Mountain Road Drop-bar Bikes Bar

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**Shop now:** [https://www.desertcart.hr/products/419342231-rockbros-2-5l-bike-triangle-frame-bag-waterproof-bikepacking-bag](https://www.desertcart.hr/products/419342231-rockbros-2-5l-bike-triangle-frame-bag-waterproof-bikepacking-bag)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-23*