# Helmet GIRO RADIX MIPS — MTB helmet, matte black, size S (51–55 cm)

**URL:** https://aio.lv/en/product--giro-gr-39307-255-s--12384684
**Data updated:** 2026-04-26 20:56 (EEST)
**Category:** Protective Helmets
**Manufacturer:** GIRO
**Manufacturer code:** GR-39307-255-S
**EAN:** 199270035468
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 127.49 €
**Prices and availability valid until:** 2026-08-18 23:59
**Price without VAT (21%):** 105.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giro-gr-39307-255-s--12384684

## 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

GIRO RADIX MIPS is a mountain bike (MTB) helmet featuring MIPS technology for rotational impact protection. This matte black size S (51–55 cm) model offers multiple ventilation ports, an adjustable retention system and impact-absorbing liner for everyday trail riding and commuting. Suitable for riders seeking enhanced safety and fit.

## Long description

The GIRO RADIX MIPS — MTB helmet in matte black, size S (51–55 cm) is designed for trail riders and urban cyclists who need a compact, well-ventilated helmet with enhanced rotational impact protection. The helmet integrates MIPS technology with an impact-absorbing liner and an adjustable retention system to provide a secure fit across a range of head shapes. Multiple ventilation ports and an aerodynamic shell profile balance airflow and coverage for everyday trail riding and commuting.
Advantages
The combination of MIPS rotational protection and a crush-absorbing liner reduces rotational and linear forces during impacts. An adjustable retention dial and contoured straps deliver a snug, customizable fit for the 51–55 cm head circumference range. The matte black finish offers a low-glare, neutral appearance suitable for varied riding styles, while multiple vents support airflow to help manage heat on longer rides.
Suitable for
Cross-country and all-mountain trail riding
Daily commuting and urban cycling
Beginner and intermediate riders seeking added safety features
Riders preferring a compact, low-profile helmet
When it may not be suitable
This size S helmet fits head circumferences between 51 and 55 cm; it may not be suitable for riders outside that range. Riders who require full-face protection for aggressive downhill or enduro racing should choose a dedicated full-face helmet rather than this open-face MTB model.
Key specifications
Fit range: 51–55 cm head circumference
Construction: hard outer shell with impact-absorbing inner liner
Safety system: MIPS rotational impact protection
Ventilation: multiple front and rear vents for airflow
Retention: adjustable dial-fit retention system and adjustable straps
Finish: matte black exterior
Intended use: mountain biking and urban cycling
How to use
Place the helmet on the head so the front rim sits just above the eyebrows and the shell covers the back of the skull. Use the adjustable retention dial to tighten until the helmet feels secure but comfortable; straps should form a V under each ear and be fastened with the buckle. Check that the helmet does not tilt significantly forward or backward and that it remains stable during movement. Replace the helmet after a significant impact or when signs of damage appear.
What to consider before purchase
Measure head circumference to ensure it falls within the 51–55 cm fit range
Decide whether MIPS rotational protection matches your safety priorities
Consider whether an open-face MTB helmet is appropriate for your riding discipline
Check compatibility with accessories such as eyewear or a helmet-mounted light
Usage recommendations
For best protection, replace the helmet after any crash that may have caused impact forces, and follow manufacturer care instructions for cleaning and storage. Use the adjustable retention system to maintain a stable fit, and combine the helmet with appropriate eyewear and gloves for improved comfort and safety on trails or city routes.

## FAQ

### How much does the GIRO RADIX MIPS helmet — matte black, size S cost, and is it available for purchase?

The price is 127.49 € (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 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 GIRO RADIX MIPS helmet — matte black, size S 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 GIRO 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 GIRO 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