# Indoor Bike Trainer Master X-04 by Master — model MAS-X04

**URL:** https://aio.lv/en/product--master-mas-x04--11241235
**Data updated:** 2026-03-07 19:53 (EET)
**Category:** Exercise Equipment
**Manufacturer:** Master
**Manufacturer code:** MAS-X04
**EAN:** 8592833002921
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 131.49 €
**Prices and availability valid until:** 2026-07-07 23:59
**Price without VAT (21%):** 108.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--master-mas-x04--11241235

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Master X-04 is an indoor bike trainer by Master (model MAS-X04) designed to convert a regular bicycle into a stationary training setup. It provides a stable frame and resistance unit for cycling workouts at home, enabling cadence and endurance training, interval sessions, and warm-ups. Suitable for road and hybrid bikes equipped for rear-wheel mounting; compact for home use and indoor training routines.

## Long description

Master X-04 is an indoor bike trainer by Master that converts a regular road or hybrid bicycle into a stable stationary setup for indoor cycling. The unit provides a frame and resistance mechanism that allow cadence, endurance and interval training at home. Designed for rear-wheel mounting, the trainer is compact for storage and fits common home training routines and warm-up sessions.
Advantages
The Master X-04 offers a stable riding platform with adjustable resistance to simulate different training intensities. Its compact footprint enables convenient storage in apartments or garages and quick installation when switching between outdoor and indoor riding. The trainer is compatible with typical road and hybrid bicycles and supports sustained training sessions without the need for a dedicated indoor bike.
Suitable for
Indoor cadence and endurance training
Interval workouts and structured sessions
Warm-ups before outdoor rides or races
Home training where space is limited
Key specifications
Mounting: rear-wheel attachment for road and hybrid bicycles
Frame: stable foldable or compact frame for indoor use
Resistance: adjustable mechanical resistance unit for variable intensity
Compatibility: designed for common wheel sizes used on road and hybrid bikes
Storage: compact dimensions suitable for home storage
How to use
Place the trainer on a level surface and secure the rear wheel of your bicycle into the trainer's mounting clamp. Adjust the resistance unit and roller contact according to the manufacturer's fit instructions so the wheel spins freely against the resistance element. Check alignment and stability before starting, then pedal at a comfortable cadence to begin training. Make incremental resistance changes to perform endurance or interval workouts as required.
Usage recommendations
Use a mat under the trainer to protect flooring and reduce noise. Regularly inspect the roller and mounting hardware for wear and ensure tire pressure is appropriate to avoid excessive slippage. Follow the bicycle and trainer manufacturer's guidance for safe mounting and weight limits.

## FAQ

### How much does the Master indoor bike trainer X-04 cost, and is it available for purchase?

The price is 131.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 01.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Master indoor bike trainer X-04 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Master 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 Master 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/11241235/62132039_large.webp