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

**URL:** https://aio.lv/en/product--bell-bel-7158245--11832633
**Data updated:** 2026-03-09 14:44 (EET)
**Category:** Protective Helmets
**Manufacturer:** BELL
**Manufacturer code:** BEL-7158245
**EAN:** 196178172561
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 143.49 €
**Prices and availability valid until:** 2026-07-24 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-7158245--11832633

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

BELL 4FORTY AIR is a mountain bike (MTB) helmet in Matte Cement finish, size M designed for head circumferences 55–59 cm. It combines in-mold construction and ventilation channels for airflow, integrated visor and adjustable fit system for secure positioning. Intended for trail and all-mountain riding where protection, comfort and ventilation are required.

## Long description

The BELL 4FORTY AIR mountain bike helmet in Matte Cement, size M (55–59 cm), is designed for trail and all-mountain riders who need a balance of protection, ventilation and fit. The helmet features in-mold construction combined with internal ventilation channels to manage airflow and reduce heat build-up during intensive rides. An integrated visor helps shield the eyes from sun and debris, while the adjustable retention system allows secure and personalized positioning on the head.
Advantages
This helmet delivers a blend of lightweight in-mold construction and purposeful ventilation that keeps weight down without sacrificing impact protection. The airflow channels are engineered to promote cooling over long climbs and technical descents. The integrated visor provides practical sun and trail protection, and the adjustable fit system ensures consistent positioning and stable coverage across varied terrain. The Matte Cement finish offers a neutral, low-gloss appearance that is durable and easy to maintain.
Suitable for
 Trail riding and all-mountain cycling
 Cross-country rides that require ventilation and light weight
 Daily training sessions and multi-hour rides
 Riders seeking a mid-size helmet for 55–59 cm head circumference
Key specifications
 Size: M, fits head circumference 55–59 cm
 Construction: in-mold shell for impact energy management
 Ventilation: internal channels for enhanced airflow
 Visor: integrated fixed visor for sun and debris protection
 Fit system: adjustable retention mechanism for personalized fit
 Finish: Matte Cement
How to use
Place the helmet level on the head so that the front edge sits just above the brow. Adjust the retention system until the helmet feels secure but not tight, and fasten and adjust the chin straps so they form a V-shape under each ear. Ensure straps are snug and the buckle is secure before starting a ride. Periodically inspect the helmet for signs of wear, proper strap condition and correct fit, and replace the helmet after any significant impact.
Usage recommendations
For optimal performance, use the helmet for trail and all-mountain riding where ventilation and a stable fit are required. Clean with mild soap and water, avoid solvents or abrasive cleaners, and store the helmet away from prolonged sunlight and extreme heat to preserve the finish and materials.

## 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 — 12 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 14.07.2026 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/11832633/67233193_large.webp