# Bicycle Helmet 100 КНИГ Aircraft Composite yellow size S

**URL:** https://aio.lv/en/product--100-knig-sto-80004-461-10--11832522
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Protective Helmets
**Manufacturer:** 100 КНИГ
**Manufacturer code:** STO-80004-461-10
**EAN:** 841269171212
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 280.49 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 231.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--100-knig-sto-80004-461-10--11832522

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Bicycle helmet 100 КНИГ Aircraft Composite in yellow, size S. Lightweight protective helmet designed for cycling, featuring a composite shell construction for impact protection and a compact fit in small size S. Suitable for urban commuting, recreational rides and short-distance cycling where reliable head protection and comfortable fit are required.

## Long description

Bicycle Helmet 100 КНИГ Aircraft Composite yellow size S is a lightweight protective helmet designed for cycling. The helmet combines a composite outer shell with internal impact-absorbing materials to provide reliable head protection while maintaining a compact profile for a small size (S). Its design targets urban commuting, recreational rides and short-distance cycling where a comfortable, secure fit and breathable construction are important.
Advantages
The helmet’s composite shell construction offers enhanced impact resistance compared with standard single-material shells while keeping overall weight low for extended wear. Its small size S delivers a snug fit for riders with smaller head circumferences, reducing movement during rides. Ventilation openings and an internal padding system provide airflow and comfort, and the adjustable retention mechanism allows fine-tuning of fit for improved stability.
Suitable for
Urban commuting and city cycling
Recreational rides and weekend outings
Short-distance trips and bike paths
Riders seeking a compact helmet in size S
Key specifications
Shell material: composite construction for increased impact protection
Size: S (small fit designed for smaller head circumferences)
Color: yellow for increased daytime visibility
Weight: lightweight design for reduced fatigue during use
Ventilation: multiple vents for airflow and temperature regulation
Interior: removable or adjustable padding for comfort and hygiene
Retention: adjustable retention system for secure fit
How to use
Place the helmet on the head so that the front edge sits approximately two finger widths above the eyebrows. Center the helmet and adjust the side straps to form a Y shape around each ear, then fasten the chin strap and tighten until it is snug but comfortable. Use the rear retention dial or adjustment system to eliminate excessive movement and ensure the helmet sits level on the head. Regularly inspect the helmet for visible damage and replace it after any significant impact or if padding or straps are compromised.
Usage recommendations
Choose the correct small size S by measuring head circumference and consult sizing charts if available. Clean the helmet with mild soap and water and avoid solvents. Store in a dry place away from direct sunlight and replace the helmet according to manufacturer guidelines after impacts or visible wear to maintain optimal protection.

## FAQ

### How much does the Bicycle Helmet 100 КНИГ Aircraft Composite S cost, and is it available for purchase?

The price is 280.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 23.07.2026 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 Bicycle Helmet 100 КНИГ Aircraft Composite 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 100 КНИГ 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 100 КНИГ 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/11832522/67233083_large.webp