# Bicycle Helmet GIRO RADIX MIPS size S (51–55 cm) matte white

**URL:** https://aio.lv/en/product--giro-gr-39305-067-s--12375061
**Data updated:** 2026-04-26 20:47 (EEST)
**Category:** Protective Helmets
**Manufacturer:** GIRO
**Manufacturer code:** GR-39305-067-S
**EAN:** 199270035161
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 127.99 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 105.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giro-gr-39305-067-s--12375061

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.79 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

GIRO RADIX MIPS is a bicycle helmet for mountain and trail riding featuring MIPS rotational impact protection and size S fit for 51–55 cm head circumference. The helmet offers multi-ventilation channels, adjustable retention system and secure chin strap for everyday trail, enduro or commuter use where safety and fit are priorities.

## Long description

The GIRO RADIX MIPS size S (51–55 cm) matte white is a bicycle helmet designed for mountain, trail and everyday riding where protection and a secure fit are priorities. It features a low-profile shell with multi-ventilation channels and an integrated rotational impact protection system. The helmet combines a focus on fit, ventilation and impact management to suit riders who need reliable head protection during technical or urban rides.
Advantages
The helmet includes a rotational impact protection system to reduce rotational forces in certain impacts, an adjustable retention system that allows quick micro-adjustments for a snug fit, and a secure chin strap with easy-to-use buckles. Its multi-ventilation channel design promotes airflow to help regulate temperature during long descents or warm-weather rides. The matte white finish provides a neutral, low-glare appearance that pairs with a variety of cycling apparel.
Suitable for
Trail and enduro mountain biking where head protection and fit are important
Daily commuting and urban cycling with occasional off-road sections
Riders with head circumference between 51 and 55 cm seeking a size S helmet
Cyclists who prioritize ventilation and adjustable fit in a low-profile helmet
When it may not be suitable
This model is sized specifically for head circumferences of 51–55 cm and therefore is not suitable for those outside that range. The RADIX MIPS is designed primarily for trail and enduro-style riding and urban use; riders seeking full-face protection for downhill racing or extreme gravity riding should consider helmets designed for those disciplines.
Key specifications
Intended use: mountain, trail, commuter cycling
Fit range: 51–55 cm (size S)
Protection technology: integrated rotational impact protection system
Ventilation: multiple airflow channels for active cooling
Retention: adjustable micro-adjust retention system for precise fit
Chin strap: quick-release buckle with adjustable straps
Finish: matte white shell
How to use
Place the helmet level on the head so the front edge sits just above the eyebrows and adjust the retention system until the helmet feels snug but comfortable. Fasten and tighten the chin strap so two fingers fit between the strap and the chin; adjust side straps to form a small "V" under each ear. Use the micro-adjust dial to fine-tune fit before each ride and inspect the helmet for cracks or damage after any impact. Replace the helmet after significant impact or when showing signs of material degradation.
What to consider before purchase
Measure head circumference to confirm a 51–55 cm fit matches your size
Decide whether rotational impact protection and ventilation meet your riding needs
Confirm preferred finish and compatibility with goggles or eyewear
Check fit comfort with the retention system and strap adjustment options
Usage recommendations
For optimal protection, replace the helmet after any significant impact and follow manufacturer care instructions. Regularly clean the interior pads and straps, and adjust the retention system for each use to maintain a secure fit during trail and commuting rides.

## FAQ

### How much does the GIRO RADIX MIPS bicycle helmet S (51–55 cm) cost, and is it available for purchase?

The price is 127.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 05.08.2026 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 bicycle helmet S (51–55 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 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