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The OnGuard MASTIFF 8019 lock features a chain that is 110 cm long, with hexagonal links made of hardened steel and reinforced with titanium (10 mm in diameter), offering more locking options. The Boxer U-lock can also function as a brake lock.

Basic data

Brand OnGuard
Country of origin of the brand USA
Sport Bicycles
Gender Not applicable
Season Year-round
Leading colour Black
Model/product code Mastiff ONG-8019
Type of Product Chain
Code 2000126088

Product details

Lock type On key
Security level 90/100
Fastener length 110 cm
Clasp diameter 14 mm
Material Hardened steel
Technologies X4P - Quattro Bolt

Warnings and producer's data

Producer Todson | Inc. 4 Cocasset Street Foxboro, MA 02035 | info@onguardlocks.com | AMP SOURCE Siulczyńska Spk | Wielkopiecowa 6 42-200 Częstochowa Polska | info@amppolska.pl

OnGuard Mastiff 8019 bicycle lock (ONG-8019)

OnGuard Mastiff 8019 Bicycle Lock is an advanced security device designed to protect a bicycle from theft. With a length of 110 cm, it is ideal for various applications, allowing the bicycle to be secured in different locations. Made of hardened steel, the lock is characterised by exceptional durability and resistance to attempts at forced entry, providing users with confidence and peace of mind.

X4P Technology - Quattro Bolt

The OnGuard Mastiff 8019 bicycle lock is equipped with innovative X4P - Quattro Bolt technology, which significantly increases the level of security. This technology is based on a fourfold locking mechanism, which enhances resistance to manipulation and forced opening attempts. As a result, the lock offers one of the highest levels of security available on the market, reaching up to 90/100. This makes it an ideal choice for those seeking solid protection for their bicycle.

Robust Construction

The 14 mm diameter and solid construction of the OnGuard Mastiff 8019 bicycle lock provide exceptional resistance to mechanical damage. The use of hardened steel guarantees not only durability but also high resistance to cutting and attempts at breaking. The product has been designed to ensure maximum protection of the bicycle, even in the most demanding urban conditions.

Practical Key Lock Solution

The OnGuard Mastiff 8019 bicycle lock is equipped with a key lock, ensuring ease of use and security. Using a key as the locking mechanism allows for quick and convenient securing of the bicycle, while minimising the risk of accidental opening. This practical solution makes the product easy to use, and its owners can enjoy peace of mind knowing that their bicycle is adequately protected.

OnGuard Mastiff 8019 Bicycle Lock - Features:

  • Lock length of 110 cm ensuring versatility of use;
  • Made of hardened steel guaranteeing high durability;
  • Security level of 90/100 offering maximum safety;
  • Lock diameter of 14 mm increasing resistance to forced entry attempts;
  • X4P - Quattro Bolt technology providing a fourfold locking mechanism;
  • Key lock type facilitating usage and ensuring security.
X4P - Quattro Bolt
The X4P Quattro Bolt is a patented solution that locks both ends of the yoke, creating a doubly secure system. It provides resistance to attempts to pull and undermine the lock, increasing the safety and strength of the device.
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OnGuard Mastiff 8019 bicycle lock

OnGuard Mastiff 8019 bicycle lock

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OnGuard Mastiff 8019 bicycle lock

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Size 1.0 x 110 cm
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