# BELL 4FORTY AIR MIPS mountain bike helmet, matte black camo, size S (52–56 cm)

**URL:** https://aio.lv/en/product--bell-bel-7138534--12365470
**Data updated:** 2026-04-26 18:54 (EEST)
**Category:** Protective Helmets
**Manufacturer:** BELL
**Manufacturer code:** BEL-7138534
**EAN:** 768686471834
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 150.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 124.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bell-bel-7138534--12365470

## 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 MIPS is a mountain bike helmet with MIPS rotational impact protection, designed for trail and all-mountain riding. This matte black camo size S (52–56 cm) model features multiple ventilation channels, in-mold construction and an adjustable retention system for a secure fit. Suitable for riders seeking enhanced safety and comfort on off-road terrain.

## Long description

The BELL 4FORTY AIR MIPS mountain bike helmet in matte black camo, size S (52–56 cm), is a trail-focused protective helmet that combines in-mold construction with MIPS rotational impact protection. Designed for trail and all-mountain riding, it offers a balance of ventilation, coverage and fit control to suit riders who prioritize safety and comfort on varied off-road terrain.
Advantages
This helmet integrates MIPS technology to reduce rotational forces during certain impacts while maintaining a lightweight in-mold shell for impact energy management. Multiple ventilation channels promote airflow to help regulate temperature on sustained climbs and technical sections. An adjustable retention system and padded interior provide a secure, customizable fit in the S size range (52–56 cm). The matte black camo finish gives a low-profile visual appearance without affecting performance.
Suitable for
 Trail riding and singletrack where balanced protection and ventilation are required
 All-mountain and enduro-style riding with variable terrain
 Riders seeking enhanced rotational impact protection via MIPS
 Cyclists who need a compact helmet that fits a 52–56 cm head circumference
When it may not be suitable
The BELL 4FORTY AIR MIPS is optimized for mountain biking and may not be the best choice for road racing where aerodynamic profiles and very low weight are prioritized. Riders requiring full-face or downhill-specific helmets with extended chin protection should consider dedicated downhill models instead.
Key specifications
 Fit range: designed for head circumferences of approximately 52–56 cm
 Protection: rotational impact mitigation technology integrated into the helmet
 Construction: in-mold shell bonded to energy-absorbing liner for impact performance
 Ventilation: multiple front-to-back channels for airflow management
 Retention: adjustable fit system with padded interior for comfort and stability
 Finish: matte black camouflage coloring
 Intended use: trail and all-mountain mountain biking
How to use
Position the helmet level on the head so the front rim sits just above the eyebrows. Adjust the retention system until the helmet feels snug but comfortable, and fasten the chin strap so it forms a V below each ear with the buckle centered under the chin. Check that the helmet does not rock excessively when you shake your head and re-tighten the retention if needed. Replace the helmet after significant impact or if the shell or liner show visible damage.
What to consider before purchase
 Measure head circumference to confirm the 52–56 cm size range is appropriate
 Decide whether MIPS rotational protection and trail-oriented coverage meet your riding needs
 Check compatibility with goggles or eyewear you plan to use
 Inspect ventilation and weight preferences for long rides or hot conditions
Usage recommendations
Use this helmet primarily for trail and all-mountain riding. Regularly inspect straps, buckles and the interior liner for wear, clean with mild soap and water, and store out of direct sunlight to preserve materials and fit performance.

## FAQ

### How much does the BELL 4FORTY AIR MIPS helmet S (52–56 cm) cost, and is it available for purchase?

The price is 150.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 MIPS helmet S (52–56 cm) 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/12365470/68353191_large.webp