# Lock chain ONGUARD Mastiff 8019E for e-bike — 10 mm × 110 cm, 5 coded keys

**URL:** https://aio.lv/en/product--onguard-ong-8019e--10914185
**Data updated:** 2026-03-11 11:57 (EET)
**Category:** Kids’ Ride-On Accessories
**Manufacturer:** ONGUARD
**Manufacturer code:** ONG-8019E
**EAN:** 7290001285749
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 90.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 75.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--onguard-ong-8019e--10914185

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Chain lock ONGUARD Mastiff 8019E designed for e-bikes and urban bicycles. The chain measures 10 mm in thickness and 110 cm in length, providing flexible security for frames, wheels and fixed objects. Supplied with five coded keys for convenient sharing and replacements. Suitable for everyday use, short-term parking and moderate-risk environments.

## Long description

The ONGUARD Mastiff 8019E chain lock is designed for e-bikes and urban bicycles, offering a balance of flexibility and resistance. The chain is 10 mm thick and 110 cm long, allowing secure fastening of the bike frame and wheels to various fixed objects. The package includes five coded keys for shared use and easy replacement, making it suitable for everyday commuting and short stops in moderate-risk areas.
Advantages
Constructed with a 10 mm hardened steel chain and a protective sleeve, the Mastiff 8019E combines cut resistance with surface protection to prevent paint damage. Its 110 cm length gives adequate reach to lock through frames and larger fixed points. Inclusion of five coded keys provides convenient key sharing and reduces the need for duplicate key cutting. The lock’s compact design supports portability while delivering practical security for urban environments.
Suitable for
 Securing e-bikes and city bicycles during short stops
 Locking bike frames and wheels to bike stands, poles or railings
 Shared key access for families or multiple users
 Commuting, shopping trips and moderate-risk parking locations
Key specifications
 Chain thickness: 10 mm
 Chain length: 110 cm
 Material: hardened steel chain with protective sleeve
 Keys supplied: five coded keys
 Design: flexible chain for wrapping around frames and fixed objects
How to use
Thread the chain through the bike frame and, if possible, through a wheel before wrapping it around a fixed object such as a post or rack. Insert the chain end into the lock housing and turn the coded key to secure. Keep spare keys in a safe place and consider labeling one key for daily use. When not in use, store the lock in a bag or attach it to the bike frame to avoid damage to paint or components.
Usage recommendations
For higher-risk locations or long-term parking, use the Mastiff 8019E in combination with an additional rigid U-lock or a secondary chain to increase resistance against cutting tools. Always lock through the frame and, when possible, the rear wheel; choose well-lit, visible parking spots and avoid leaving accessories unattended.

## FAQ

### How much does the Chain lock ONGUARD Mastiff 8019E cost, and is it available for purchase?

The price is 90.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 15.07.2026 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 Chain lock ONGUARD Mastiff 8019E 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 ONGUARD 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 ONGUARD 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/10914185/60946385_large.webp