# U-lock bike lock MASTERLOCK QUANTUM 8392 green

**URL:** https://aio.lv/en/product--masterlock-mrl-8392eurdprocolg--12083151
**Data updated:** 2026-03-13 08:54 (EET)
**Category:** Kids’ Ride-On Accessories
**Manufacturer:** MASTERLOCK
**Manufacturer code:** MRL-8392EURDPROCOLG
**EAN:** 3520190938145
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 32.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--masterlock-mrl-8392eurdprocolg--12083151

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

U-lock bike lock MASTERLOCK QUANTUM 8392 in green. A compact U-shaped bicycle security lock designed to secure frame and wheel to fixed objects. Suitable for everyday urban use, commuting and short-term parking. Features a hardened shackle and keyed cylinder (model-specific keying), compact size for carrying on frame or in bag.

## Long description

MASTERLOCK QUANTUM 8392 U-lock in green is a compact, U-shaped bicycle security lock designed to protect a bike frame and wheel by securing them to fixed objects. The lock features a hardened shackle and a keyed cylinder with model-specific keying. Its small footprint makes it suitable for everyday urban use, commuting and short-term parking, and it can be carried on the frame or in a bag.
Advantages
The hardened shackle provides increased resistance to cutting and prying compared with non-hardened designs, while the keyed cylinder delivers reliable key operation and reduces the risk of accidental opening. The compact size balances portability and security, allowing convenient storage on the bike frame or in a backpack. The green finish offers visual identification and corrosion resistance suitable for regular city use.
Suitable for
 Securing a bike to bike racks, posts or railings during short-term stops
 Everyday urban commuting where compact, portable security is required
 Parking at workplaces, shops or public transport hubs for limited durations
Key specifications
 Lock type: U-lock (D-lock) with keyed cylinder
 Shackle: hardened steel construction for cut resistance
 Finish: green protective coating
 Design: compact U-shaped profile for frame and wheel security
 Portability: suitable for carrying on frame mounts or in bags
How to use
Open the keyed cylinder with the supplied key, position the shackle through the bike frame and, when possible, both a wheel and a fixed object such as a rack or post. Close the shackle into the locking body until it engages and remove the key. Ensure the fit leaves minimal free space to reduce leverage points and check that the key turns smoothly to confirm full lock engagement before leaving the bicycle unattended.
Usage recommendations
For improved security, use the lock in combination with additional measures such as securing both wheels with secondary locks or using the U-lock to immobilize the frame and a cable to secure the remaining wheel. Store spare keys safely and inspect the lock periodically for wear or corrosion, lubricating the cylinder as needed with a suitable lock lubricant.

## FAQ

### How much does the MASTERLOCK QUANTUM 8392 U-lock bike lock cost, and is it available for purchase?

The price is 39.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 06.07.2026 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 MASTERLOCK 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 MASTERLOCK 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/12083151/67567230_large.webp