# GIRO Tyrant Fit System Dial for Helmet Size L — Replacement Adjustment Knob, Black

**URL:** https://aio.lv/en/product--giro-gr-7121172--11849864
**Data updated:** 2026-03-09 17:25 (EET)
**Category:** Protective Helmets
**Manufacturer:** GIRO
**Manufacturer code:** GR-7121172
**EAN:** 768686347788
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 16.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giro-gr-7121172--11849864

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Replacement fit adjustment dial for GIRO helmets using the Tyrant Fit System, size L in black. This component is the external knob used to fine-tune helmet fit via the retention mechanism, providing micro-adjustable tightening and loosening. Intended as a spare part for repairing or upgrading compatible GIRO helmet models that accept the Tyrant Fit System.

## Long description

Replacement adjustment dial for the GIRO Tyrant Fit System, size L, in black. This external knob attaches to helmets that use the Tyrant Fit System to provide micro-adjustable tightening and loosening of the retention cradle. Designed as a spare part for repairing or upgrading compatible GIRO helmets, the dial restores precise fit control without replacing the entire retention assembly.
Advantages
The replacement dial offers a compact, tool-free adjustment interface that restores the helmet's original fit functionality. Made to match the Tyrant Fit System geometry, it provides consistent incremental adjustments for a secure and comfortable fit. The black finish maintains a discreet appearance and integrates with existing helmet components.
Suitable for
 Repairing a GIRO helmet equipped with the Tyrant Fit System
 Replacing a worn or damaged adjustment knob
 Upgrading an older retention dial to restore micro-adjustability
 Maintaining precise helmet fit for cycling, commuting, and recreational riding
Key specifications
 Compatibility: Designed for helmets with the Tyrant Fit System (size L)
 Color: Black
 Function: External micro-adjustment dial for retention tightening and loosening
 Mounting: Replaces existing Tyrant Fit System dial; attaches to retention cradle
 Material: Durable polymer construction suitable for regular use
How to use
Remove the damaged or worn dial from the helmet's retention cradle according to the helmet manufacturer's instructions, then align the replacement dial with the retention mechanism and press or snap it into place until it engages. Use the dial to make fine adjustments while wearing the helmet: turn clockwise to tighten and counterclockwise to loosen until the helmet feels secure and evenly seated. Verify proper engagement and free rotation of the dial before use.
Usage recommendations
Check compatibility with your GIRO helmet model and ensure the Tyrant Fit System size L is the correct fit before purchase. Inspect the retention cradle and internal components for damage when replacing the dial, and consult GIRO service instructions if unsure. Clean the dial and surrounding areas with mild soap and water; avoid solvents or abrasive cleaners.

## FAQ

### How much does the GIRO Tyrant Fit System Dial — Size L cost, and is it available for purchase?

The price is 20.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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. All transactions are 100% secure and encrypted.

### 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

## Image

https://aio.lv/img/cache/product/11849864/67248493_large.webp