# BELL 4FORTY AIR INTEGRATED MIPS mountain bike helmet, matte gray/red, size M (55–59 cm)

**URL:** https://aio.lv/en/product--bell-bel-7139329--11833339
**Data updated:** 2026-03-09 14:45 (EET)
**Category:** Protective Helmets
**Manufacturer:** BELL
**Manufacturer code:** BEL-7139329
**EAN:** 768686471988
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 151.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 125.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bell-bel-7139329--11833339

## 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 INTEGRATED MIPS is a mountain bike protective helmet with Integrated MIPS technology and an aerodynamic, ventilated shell. Size M (55–59 cm) in matte gray with red accents. Designed for trail and enduro use, it provides multi‑impact protection, adjustable fit and ventilation for comfort during long rides.

## Long description

BELL 4FORTY AIR INTEGRATED MIPS is a mountain bike helmet designed for trail and enduro riders who need a balance of protection, ventilation and a comfortable fit. The helmet features Integrated MIPS technology built into an aerodynamic, ventilated shell and is sized M (55–59 cm) in a matte gray finish with red accents. It provides multi-impact protection, an adjustable retention system and airflow management intended to keep riders comfortable on long descents and technical climbs.
Advantages
The helmet combines Integrated MIPS with a lightweight, ventilated shell to reduce rotational forces in the event of an impact while maintaining airflow. An adjustable fit system and padding allow for precise sizing across the 55–59 cm range, and the design balances coverage and mobility for aggressive trail riding. Multiple vents and internal channels are engineered to move air over the head, and durable construction supports repeated use under off-road conditions.
Suitable for
 Trail riding and enduro stages
 All‑day rides where ventilation and comfort are required
 Technical singletrack and downhill practice
 Riders seeking integrated rotational impact protection
Key specifications
 Fit size: M (55–59 cm)
 Shell finish: matte gray with red accents
 Protection system: integrated MIPS for rotational impact management
 Ventilation: multiple vents with internal airflow channels
 Adjustability: micro‑adjustable retention system and replaceable pads
 Intended use: mountain bike—trail and enduro
 Construction: durable multi‑impact shell designed for repeated off‑road use
How to use
Place the helmet on the head so it sits level, covering the forehead without tipping backward. Adjust the retention system until the helmet is snug but comfortable across the 55–59 cm fit range, and fasten the chin strap with the buckle positioned under the chin. Verify that the front edge sits about two finger widths above the eyebrows and that the helmet does not move excessively when you shake your head. Replace removable pads as needed and check vents for debris before each ride.
Usage recommendations
Use this helmet for trail and enduro riding where ventilation and integrated rotational protection are priorities. Inspect the helmet after any significant impact and replace it if structural damage or compromised protection is detected. Clean with mild soap and water, avoid solvents or high‑temperature drying, and store out of direct sunlight to preserve materials and finish.

## FAQ

### How much does the BELL 4FORTY AIR INTEGRATED MIPS helmet M (55–59 cm) cost, and is it available for purchase?

The price is 151.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 INTEGRATED MIPS helmet M (55–59 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/11833339/67233862_large.webp