specialized giant cube cannondale Mavic Castelli endura altura
Back

OnGuard Mastiff 8019 Chain Lock

From £28.19
Save up to 60% RRP: £67.99
Price Match Promise
2 reviews
Select a size
This product is not guaranteed for Christmas Delivery
Add to Basket

Product Description

Sold Secure Gold Rated

The OnGuard Mastiff chain lock is tough security system for when you have to leave your bike in public. The super tough bike chain is 130cm long for easy locking around a range of objects.

Titanium enforced steel chain links offer excellent resistance against sawing and cutting attacks as well as bolt cutters. The Z-Cylinder is bump proof and secure against picking, drilling and pulling style attacks. The OnGuard Mastiff bike lock also comes with 5 laser cut keys including one with an LED light, so you’ll always have spares.

180cm Version

Longer 6’ 10mm (0.39”) titanium reinforced, hardened steel hexagonal link chain for more locking options. Hexagonal and square links present more hardened surfaces than round links making sawing and cutting virtually impossible. Titanium surface hardening vastly increase cut and saw resistance. Embroidered nylon chain covers wont crack or peel for long lasting beauty. Velcro tabs keep cover in place to help protect paint and finishes. Comprehensive selection of locks types, chain lengths and link size to exactly match security needs.

  • Chain dimensions: 180cm x 10mm
  • Shackle diameter: 14mm Hardened steel

Key Features:

  • Automatic keyway cover, weatherproofs the lock mechanism
  • 10mm (0.39”) titanium reinforced, hardened steel hexagonal link chain resists cutting or prying
  • Chain cover protects paint and finishes, embroidered logo won’t flake or wear off
  • Bump proof Z-Cylinder resistant to picking, pulling and drilling
  • Includes 5 laser cut keys, 1 with in built micro LED

110cm Version

 Short-shackle Boxer U-lock with X4P Quattro Bolt locking mechanism paired to a 3.5-foot long, 10mm (0.39”) titanium reinforced, hardened steel hexagonal link chain. Hexagonal and square links present more hardened surfaces than round links making sawing and cutting virtually impossible. Titanium surface hardening vastly increase cut and saw resistance.

Embroidered nylon chain covers wont crack or peel for long lasting beauty. Velcro tabs keep cover in place to help protect paint and finishes. Comprehensive selection of locks types, chain lengths and link size to exactly match security needs.

  • Chain dimensions: 110cm x 10mm
  • Shackle diameter: 14mm Hardened steel

Key Features:

  • Automatic keyway cover, weatherproofs the lock mechanism
  • 10mm (0.39”) titanium reinforced, hardened steel hexagonal link chain resists cutting or prying
  • Chain cover protects paint and finishes, embroidered logo won’t flake or wear off
  • Bump proof Z-Cylinder resistant to picking, pulling and drilling
  • Includes 5 laser cut keys, 1 with in built micro LED

    OnGuard Mastiff 8019 Chain Lock Reviews

    Write your own review
    Overall Rating:
    4.8
    out of 5
    4.83
    Build Quality
    5.00
    Performance
    5
    Value For Money
    4.75

    Customer Reviews (2)

    5
    Nice chain and fantastic lock

    Looks the business and is easy to handle and use. It is heavy and not portable but for use in a shared bike store or leaving the lock where you lock the bike up at night it is perfect. Deciding factor is that is less than half the price of the similar Abus chain and lock.

    Looks the business and is easy to handle and use. It is heavy and not portable but for use in a shared bike store or leaving the lock where you lock the bike up at night it is perfect. Deciding factor is that is less than half the price of the similar Abus chain and lock.

    Close review
    5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 5/5
    5
    Ideal for stationary use

    Really heavy chain, sometimes hard to carry everyday but it's perfect if you just leave it on your usual parking spot

    Really heavy chain, sometimes hard to carry everyday but it's perfect if you just leave it on your usual parking spot

    Close review
    4.7 out of 5
    Build Quality: 5/5
    Performance: 4.5/5
    Value For Money: 4.5/5

    Chain Lock Guide

     

    Chain Lock Guide

    Overview

    For use in medium to high crime areas

    Chain locks are flexible, tough and come in a range of lengths. They opening up a range of versatile locking options that you don’t get with other types of lock. With a chain lock, you’re not limited to fixing your bike to racks and lampposts, but also trees and other oddly shaped objects.

    Chain locks are made of two parts, the steel links that create the chain and the lock. The lock may be integrated into the chain, a separate padlock or even a mini D-lock.

    A burly chain lock can withstand a range of attacks from crowbars to powered tools. However, the trade off is weight. These are the heaviest bike locks that you can get, with some models weighing over 7kg. The heavier the chain, the stronger the links and the more protection you get.


    Weight

    Portable Chain Hiplok

    Portable Chain:
    1kg – 3kg

    Lighter weight chain locks under 3kg can be wrapped around your seatpost or frame and taken with you on your morning commute. These locks are more practical for daily use, however, will not offer the same level of protection as a sturdier chain.

    Thick Knog Chain Lock

    Stationary Chain:
    3kg – 7kg

    Locks weighing over 3kg are not practical to carry around with you. They do make a great stationary storage solution for your garage or shed, where the chain can be permanently fixed in place. Match a chain lock with a ground anchor for the ultimate protection for your bike at home.


    Material

    Chain links are usually built out of steel. However, premium chains will be constructed from hardened steel. By tempering the steel during forming, it becomes harder and less brittle. This makes it much tougher to cut through the links without serious equipment and time.

    Triple heated Boron Manganese steel is exceptionally resistant to cutting style attacks while remaining ductile.

    Thick Knog Chain Lock

    Link Thickness

    Small diameter d-lock

    12mm & Under:

    Chain links under 12mm can be cut with sustained effort with standard bolt cutters if the conditions are right.

    Tip: Lock your bike in an awkward position to make it harder to use bolt cutters.

    Medium diameter d-lock

    13mm – 15mm:

    Only the heaviest duty bolt cutters will be needed for these links.

    Remember, chain links need to be cut twice to break the link. This will take skill, time and effort.

    Large diameter d-lock

    16mm & Over:

    Even the best hand operated bolt-cutters will struggle to tackle these links.

    Tip: Keep your chain and lock off the floor. Freeze spray and a hammer strike can compromise the best chain locks.


    Locking Mechanism

    The Lock

    You’ll find most chain locks either come with an integrated lock or a separate padlock (or mini D-lock). A chain is only as strong as its weakest link, so make sure the lock is tough enough for your needs.

    Look for double deadbolt locking mechanisms that make it much harder to pick or drill the lock open. The thicker the shackle diameter on the padlock or D-lock, the tougher it will be to cut through.

    Close up showing the locking mechanism of the padlock

    Construction

    Chain Length

    Most brands offer varying chain lengths to suit your needs. Consider where you’re likely to be locking your bike.

    Lengths under 1m will be useful in tight areas such as locking your bike to a rack, fence or post. 1.5m – 2m chains are useful for locking multiple frames to one spot in your garage (you won’t be carrying these length chains with you as they’re too heavy).

    Showing the cable lock in full

    Sold Secure Rated

    A great way to determine the quality of a bike lock is to see if it is Sold Secure Rated. This is a third party, UK independent rating system for bike locks.

    Sold Secure Bronze

    Coverage: Up to £500

    Sold Secure Silver

    Coverage: Up to £1,000

    Sold Secure Gold

    Coverage: Over £1,000

    An approved lock is graded as Gold, Silver or Bronze. The rating is chosen by how long it takes to break the lock and the tools needed to break it. If you're planning on insuring your bike, many insurers will state you need a Sold Secure rated lock to make a successful claim.

    These values vary between insurance providers so check the terms and conditions of your provider.


    Frame Protection:

    Metal chain links can quickly scuff your paintwork. Look for chain locks that come with plastic or canvas sleeves to protect your frame from damage.

    It’s also worth choosing a lock (whether integrated or separate) that has rubberised or bump proof shackles and crossbars to ensure your paintwork is safe.

    Showing a close up of the coated part of the lock

    Delivery & Guarantee

    Christmas Delivery

    We will try our very best to get your products delivered to you before Christmas, but due to Santa's overspill into our delivery services, we would like to make you aware that while we are making every effort to deliver your order to you in time for Christmas, there may be a potential risk of delay.

    The last date to order a bike that is available for Christmas delivery is 5pm on Tuesday 18th December. For all other items the last date to order items that are available for Christmas delivery is 12pm on Wednesday 19th December.

    You can easily spot which items are guaranteed for Christmas delivery with the icon. Choose your size and colour to see if the item qualifies for Christmas delivery.

    UK Delivery Information

    We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and on all orders over £20.

    Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

    Please note that Pre-Order dates can sometimes change due to updated stock information.

    Click here for more UK and international delivery information.

    Returns & Warranty

    It's easy to return a product with our 365 day, hassle free returns. 

    We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

    Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

    If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

    For more information please visit our Returns & Warranty page.

    You may also like...

    ;