# Giro helmet adjustment dial ROC LOC DH size M & L 2017 replacement part

**URL:** https://aio.lv/en/product--giro-307008-uniw--11850357
**Data updated:** 2026-03-09 17:25 (EET)
**Category:** Protective Helmets
**Manufacturer:** GIRO
**Manufacturer code:** 307008-uniw
**EAN:** 768686047503
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giro-307008-uniw--11850357

## 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 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Replacement adjustment dial for GIRO helmets using the ROC LOC DH retention system; compatible with sizes M and L and listed for 2017 models. Serves as a tightening/fit-control knob to restore or adjust helmet fit. Intended for use with Giro helmets that use the ROC LOC DH interface to improve comfort and secure fit during cycling and downhill riding.

## Long description

Replacement adjustment dial designed for GIRO helmets that use the ROC LOC DH retention system and compatible with size M and L helmets from the 2017 model range. This replacement part restores the helmet’s fit-control mechanism, allowing riders to fine-tune tightness and lateral stability. The dial is a direct-fit component intended to work with Giro’s ROC LOC DH interface to maintain a consistent and adjustable fit during cycling and downhill riding.
Advantages
The adjustment dial provides precise micro-adjustment of helmet circumference, enabling an improved and repeatable fit without changing the shell or foam liner. It replaces worn or damaged knobs to recover original retention performance and preserves the helmet’s designed comfort and stability. The part is compatible with the ROC LOC DH interface and supports safe, tool-free on-the-fly tightening and loosening.
Suitable for
Replacement for Giro ROC LOC DH helmets in sizes M and L (2017 models)
Downhill and trail riding where secure helmet fit is essential
Regular cyclists needing to restore a worn retention dial
Key specifications
Compatibility: ROC LOC DH retention system for Giro helmets (size M & L, 2017 models)
Function: micro-adjustment dial for helmet circumference and fit tension
Mounting type: direct replacement for the OEM ROC LOC DH knob
Material properties: durable polymer construction designed for repeated adjustment
Operation: tool-free turning mechanism for on-the-ride fit changes
How to use
Fit the replacement dial onto the ROC LOC DH retention interface following the helmet manufacturer’s instructions for removal of the old dial. Once installed, rotate the dial clockwise to tighten the fit and counterclockwise to loosen. Verify even seating of the retention band and perform a fit check to confirm the helmet sits snugly and securely on the head before riding. If any resistance or misalignment is detected during installation, inspect the retention cradle and straps for damage and consult Giro documentation or an authorized dealer.
Usage recommendations
Use this replacement dial only with Giro helmets specified to use the ROC LOC DH interface and sizes M or L from the compatible model year. Periodically check the dial and retention system for wear and ensure straps and attachment points are intact. Replace the component if it shows cracks, severe wear, or fails to hold adjustment reliably.

## FAQ

### How much does the Giro ROC LOC DH adjustment dial M & L 2017 cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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

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