# Bike frame bag Rockbros 039BK — 1 L capacity, black

**URL:** https://aio.lv/en/product--rockbros-rockbros-039bk--11471509
**Data updated:** 2026-03-20 09:49 (EET)
**Category:** Kids’ Ride-On Accessories
**Manufacturer:** Rockbros
**Manufacturer code:** Rockbros-039BK
**EAN:** 5907769362118
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Rockbros 039BK is a compact bike frame bag with a 1‑liter internal capacity designed to attach inside the bicycle frame. The black textile pouch secures to frame tubes with straps and provides storage for tools, pump, phone or small items during rides. Suitable for commuting, touring and everyday cycling where low-profile, accessible storage is needed.

## Long description

Rockbros 039BK is a compact 1 L bike frame bag in black textile designed to fit inside the main triangle of a bicycle frame. The low-profile pouch fastens to top tube, down tube and seat tube with adjustable straps, offering accessible storage for essential items without interfering with pedaling or steering. Its slim shape and neutral color make it suitable for a wide range of bicycles and riding styles where lightweight, tucked-away capacity is required.
Advantages
The bag provides organized, easily reachable storage for small tools, a mini pump, a mobile phone or spare tubes while maintaining a minimal visual and aerodynamic profile. Adjustable attachment straps ensure a secure fit to most frame geometries, and the textile construction balances durability with weight savings. The internal volume of approximately 1 liter is sufficient for daily commuting needs and short tours without adding bulk to the bike.
Suitable for
Urban commuting and everyday cycling
Short bike tours and recreational rides
Storing tools, pump, phone, keys and small spare parts
Bicycles with a standard main triangle where a low-profile bag is preferred
Key specifications
Internal capacity: about 1 liter
Color: black textile exterior
Attachment: adjustable straps for top tube, down tube and seat tube
Shape: slim, triangular pouch designed for fitting inside the frame triangle
Weight: lightweight construction suitable for minimal added load
How to use
Position the bag inside the bike’s main triangle with the zipper or opening facing upward for easy access while stopped. Wrap and fasten the adjustable straps around the top tube, down tube and seat tube so the pouch sits securely and does not contact the chainring or pedals. Place heavier items closer to the frame and lighter, frequently used items near the opening for quick retrieval. Regularly check strap tightness and textile condition to ensure safe mounting.
Usage recommendations
For best results, avoid overfilling the bag beyond its 1 L capacity and distribute weight evenly. Remove electronic devices during heavy rain or use an additional waterproof cover if exposure to prolonged wet conditions is expected. Inspect attachment points before each ride and re-secure straps after rough terrain to prevent movement.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Rockbros products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Rockbros service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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