# Helmet BELL 4FORTY AIR MIPS – mountain bike helmet, solid matte black, size XL (61–65 cm)

**URL:** https://aio.lv/en/product--bell-bel-39280-255-xl--12405883
**Data updated:** 2026-04-30 18:35 (EEST)
**Category:** Protective Helmets
**Manufacturer:** BELL
**Manufacturer code:** BEL-39280-255-XL
**EAN:** 199270049137
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 148.49 €
**Prices and availability valid until:** 2026-08-18 23:59
**Price without VAT (21%):** 122.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bell-bel-39280-255-xl--12405883

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

BELL 4FORTY AIR MIPS is a mountain bike helmet with integrated MIPS rotational impact protection, designed for trail and enduro riding. This solid matte black XL (61–65 cm) model features enhanced ventilation, adjustable retention system and focused coverage for the back of the head, providing reliable impact management and comfort for all-day rides.

## Long description

The BELL 4FORTY AIR MIPS in solid matte black (size XL, 61–65 cm) is a mountain bike helmet engineered for trail and enduro riding. It integrates a rotational impact protection system and a ventilation-focused shell shape with extended rear coverage to balance impact management and airflow. The helmet includes an adjustable retention system to fine-tune fit and comfort for longer rides.
Advantages
This helmet combines rotational impact protection technology with a lightweight, ventilated construction to reduce heat buildup during active trail use. Its extended rear coverage provides additional protection for the occipital area while the adjustable retention system ensures a stable fit across the XL size range. Matte black finish offers a low-reflective, understated appearance suitable for varied riding conditions.
Suitable for
Trail and enduro mountain biking
All-day rides where ventilation and fit adjustment are important
Riders seeking enhanced rear-head coverage without a full-face helmet
When it may not be suitable
The helmet is not a full-face model and therefore not intended for downhill racing or situations where chin and face protection are required. Riders who need a very compact or ultra-lightweight cross-country race helmet may find this design heavier than minimalist race-specific models.
Key specifications
Intended use: trail / enduro mountain biking
Size range: XL for head circumferences approximately 61–65 cm
Protection: rotational impact protection system integrated into the liner
Coverage: focused rear/occipital protection
Ventilation: enhanced venting channels for airflow
Fit system: adjustable retention mechanism for precise fitting
Finish: solid matte black
How to use
Position the helmet level on the head so the front rim sits just above the eyebrows and the rear covers the back of the skull. Fasten and adjust the retention system until the helmet feels snug but comfortable; you should be able to fit no more than two fingers between the strap and the jaw. Ensure the rotational protection liner is correctly seated and that vents are unobstructed. Replace the helmet after any significant impact or when fit and structural integrity are compromised.
What to consider before purchase
Measure head circumference to confirm XL (61–65 cm) is appropriate
Decide if extended rear coverage suits your riding style (trail/enduro vs downhill or XC)
Check compatibility with any eyewear, communication systems, or aftermarket accessories
Usage recommendations
Use this helmet for trail and enduro riding where balanced ventilation, secure fit, and rear-head coverage are priorities; maintain and inspect it regularly and replace it after heavy impacts.

## FAQ

### How much does the BELL 4FORTY AIR MIPS helmet XL cost, and is it available for purchase?

The price is 148.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 03.08.2026 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 XL 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