# Bike bottle holder Rockbros FK338 Black Blue — Rockbros FK338 bicycle water bottle cage, universal fit

**URL:** https://aio.lv/en/product--rockbros-rockbros-31210007003--11471522
**Data updated:** 2026-03-07 20:19 (EET)
**Category:** Kids’ Ride-On Accessories
**Manufacturer:** Rockbros
**Manufacturer code:** Rockbros-31210007003
**EAN:** 5907769314216
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rockbros-rockbros-31210007003--11471522

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

Rockbros FK338 bike bottle holder is a lightweight bicycle water bottle cage designed for secure mounting on standard frame tubes. Finished in black with blue accents, it provides a universal fit for common bottle sizes and features a sturdy construction for everyday cycling, commuting and leisure rides. Suitable for road, city and mountain bikes.

## Long description

Rockbros FK338 Black Blue is a lightweight bicycle water bottle cage designed to secure standard drink bottles to bicycle frames. The cage combines a narrow profile with reinforced contact points to hold bottles firmly during rides. Its black finish with blue accents provides a neutral aesthetic that suits road, city and mountain bikes while keeping the bottle accessible for quick hydration.
Advantages
The FK338 offers a balance of low weight and robust construction to resist flexing and maintain grip on bottles. Its universal shape accommodates most common bottle diameters and allows easy insertion and removal while minimizing rattling. The durable material and simple mounting interface make it suitable for everyday cycling and regular outdoor use.
Suitable for
Road cycling where quick bottle access is needed
Commuting and city rides
Leisure and fitness rides on mixed terrain
Mountain biking as a secondary or lightweight bottle cage
Key specifications
Material: lightweight composite with reinforced contact points
Finish: black with blue accents
Compatibility: universal fit for standard bicycle frame tubes and common bottle sizes
Mounting: two-bolt frame attachment (standard spacing)
Weight: lightweight design optimized for minimal added mass
Profile: narrow, low-profile shape to reduce interference with pedals and legs
How to use
Position the cage on the bicycle frame so the mounting holes align with the frame bosses. Secure using appropriate bolts tightened to a moderate torque to avoid damage to the frame or cage. Insert the bottle by pushing it into the cage until it is held firmly by the contact points; remove by pulling outward. Check the mounting bolts periodically and retighten if necessary to maintain a secure fit.
Usage recommendations
For reliable performance, use bottles with standard diameters and inspect the cage after off-road rides. If unusual rattling or looseness occurs, verify bolt torque and examine the contact areas for wear. Avoid over-tightening bolts to prevent thread damage to the frame bosses.

## FAQ

### How much does the Rockbros FK338 bike bottle holder cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 594 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 24.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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

https://aio.lv/img/cache/product/11471522/66109490_large.webp