# Adjustment Dial for GIRO Merit RL/TRL Fit System — Replacement Knob, Black, Size L

**URL:** https://aio.lv/en/product--giro-gr-7146421--11832484
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Protective Helmets
**Manufacturer:** GIRO
**Manufacturer code:** GR-7146421
**EAN:** 196178012485
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giro-gr-7146421--11832484

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Replacement adjustment dial designed for GIRO Merit helmets with RL/TRL Fit System. This black size L knob allows precise fit tuning of the helmet retention system, restoring secure and comfortable headhold. Suitable for repairing or upgrading the fit mechanism on compatible GIRO Merit models; intended for helmet maintenance and fit customization.

## Long description

This replacement adjustment dial is designed for GIRO Merit helmets equipped with the RL/TRL Fit System. The black, size L knob restores the helmet's retention mechanism, allowing precise micro-adjustments to the head circumference for a secure and comfortable fit. It is intended for maintenance, repair, or upgrade of compatible GIRO Merit models to regain reliable fit performance without replacing the entire retention assembly.
Advantages
The adjustment dial provides smooth, incremental rotation for fine-tuning helmet tension and improved head stability. Its durable construction resists everyday wear and maintains consistent performance over repeated use. Installation restores the original functionality of the fit system, helping retain the helmet’s protective positioning and overall comfort.
Suitable for
Repairing the RL/TRL Fit System on GIRO Merit helmets
Replacing worn or damaged adjustment knobs
Upgrading a helmet retention mechanism to size L for improved fit
Maintenance tasks to restore secure headhold and comfort
Key specifications
Compatibility: GIRO Merit helmets with RL/TRL Fit System
Color: Black
Size: L (large) adjustment knob
Function: Manual micro-adjustment dial for retention tension
Material characteristics: durable plastic construction suitable for repeated use
How to use
Remove the damaged or existing dial according to the helmet manufacturer’s instructions, taking care to preserve small mounting components. Align the replacement knob with the fit system interface and press or thread it into place until it engages securely. Rotate the dial clockwise or counterclockwise to increase or decrease retention tension until the helmet sits comfortably and securely on the head. Verify even contact around the head and perform a brief fit check before use.
Usage recommendations
Inspect the fit system periodically for wear, dirt, or damage and replace the dial if adjustments become difficult or the retention no longer holds. Use only compatible replacement parts for safety-critical components and follow GIRO’s helmet care guidance to maintain protective performance.

## FAQ

### How much does the GIRO Merit RL/TRL Fit System Adjustment Dial L cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 08.07.2026 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/11832484/67233047_large.webp