# BELL 4FORTY AIR mountain bike helmet — size M (55–59 cm), Matte Brick Red Ocean

**URL:** https://aio.lv/en/product--bell-bel-7138547--11833088
**Data updated:** 2026-03-09 14:44 (EET)
**Category:** Protective Helmets
**Manufacturer:** BELL
**Manufacturer code:** BEL-7138547
**EAN:** 5907558693706
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 143.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 118.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bell-bel-7138547--11833088

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

BELL 4FORTY AIR is a mountain bike (MTB) protective helmet in Matte Brick Red Ocean, offered in size M (55–59 cm). Designed for trail and cross-country riding, it provides head protection with a focus on ventilation and fit. Suitable for everyday trail use, club rides and off-road training where a reliable, properly sized MTB helmet is required.

## Long description

BELL 4FORTY AIR mountain bike helmet in Matte Brick Red Ocean, size M (55–59 cm), is a protective helmet designed for trail and cross-country (XC) riding. The helmet balances impact protection with enhanced ventilation and an adjustable fit to suit daily trail use, club rides and off-road training. Its mid-range coverage and airflow-oriented shell make it appropriate for riders who prioritize comfort during extended efforts while maintaining safety standards typical for MTB helmets.
Advantages
The helmet offers optimized airflow through a network of vents that channel air across the head, reducing heat buildup during intense climbs and longer rides. An adjustable fit system ensures secure and consistent positioning for the 55–59 cm head circumference range, improving stability and comfort. The Matte Brick Red Ocean finish provides a low-glare, easy-to-maintain exterior that resists minor surface wear and keeps the helmet looking uniform over time.
Suitable for
 Trail riding and enduro-style singletrack where ventilation and fit matter
 Cross-country (XC) training and club rides
 Daily off-road practice and bikepark warm-up laps
 Commuting on mixed-surface routes where a robust MTB helmet is preferred
Key specifications
 Size: Medium, designed for head circumferences 55–59 cm
 Shell finish: Matte Brick Red Ocean
 Ventilation: Multi-vent design for increased airflow
 Fit system: Adjustable retention for a secure fit
 Coverage: Mid to full cranial coverage typical for MTB helmets
 Intended use: Trail and cross-country mountain biking
How to use
Place the helmet level on the head so that the front edge sits just above the eyebrows. Adjust the retention system until the helmet feels snug but not overly tight, then fasten and position the chin strap so it forms a V-shape under each ear and closes comfortably under the chin. Verify that the helmet does not shift when you nod or shake your head and re-tighten the fit system if necessary. Replace the helmet after any significant impact or when visible damage or cracking is present.
Usage recommendations
Use the BELL 4FORTY AIR for trail and cross-country sessions where ventilation and a stable fit reduce fatigue and improve comfort. Regularly inspect straps, buckles and the shell for wear, clean with mild soap and water, and store the helmet away from direct sunlight and extreme temperatures to prolong service life.

## FAQ

### How much does the BELL 4FORTY AIR MTB helmet — size M cost, and is it available for purchase?

The price is 143.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 16.07.2026 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 BELL 4FORTY AIR MTB helmet — size M 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 BELL 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 BELL 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/11833088/67233625_large.webp