OnGuard Bulldog DT Combo U-Lock with Cable
- ShowProduct Information The OnGuard Combo DT U-Lock has the convenience and security of the Bull Dog Combo bike lock, but wi... read more
- Show Reviews & Q&As
- Show D-Lock Guide
- Show Delivery & Guarantee
Product Description
The OnGuard Combo DT U-Lock has the convenience and security of the Bull Dog Combo bike lock, but with a 4 foot steel cable.
The OnGuard U-lock offers strong resistance against leverage and cutting style attacks, while the extra braided steel cable gives you more flexible locking options. You can easily secure quick release wheels or components as well as your frame. A four-digit combination you up to 9,999 numbers to choose from for extra security.
Review | 4.5 / 5
"On the money in terms of top security at a wallet-friendly price" - Bikeradar
Key Features:
- X2P Double Bolt Locking Mechanism locks shackle on both sides
- NEW Z-Cylinder is bump-proof and resists picking, pulling or drilling
- Hefty 13mm (0.51”) hardened steel shackle resists cutting, prying and jacking
- Rounded design and centred keyway eliminates pry points
- Double rubber coated crossbar cover protects paint and finishes
- Extra thick moulded end caps protects against bumps and hits
- Shackle dimensions: 115mm x 230mm x 13mm (W x H x Diameter)
- Cable dimension: 120cm x 10mm
Shackle Dimensions:
- 115mm x 230mm (W x H x Diam) (4.53" x 9.06") x 13mm (0.51")
D Cable Dimensions:
- 120cm x 10mm (4 x 0.39")
Additional Features:
- Snap Lock Quick Release multiposition mounting bracket
Occasionally, without notice, manufacturers change product design and/or specifications.
D-Lock Guide
D-Lock Guide
Overview
For use in medium to high crime areas
A D-Lock (also known as a U-Lock) is the most practical bike lock you can get for peace of mind when you’re at the shops or in work all day.
D-Locks are ideal for bike security as they offer strong protection against a range of attacks. While some of these locks will be heavy, they are much more portable than a chain lock and far tougher than a cable lock. D Locks are very stiff meaning they’re easy to fit around your bike and a stationary object.
Most D-Locks come in two parts. You have the shackle made of steel or hardened steel with a diameter up to 18mm. The crossbar contains the locking mechanism and you slide the shackle into the bar and turn the key to fix it in place.
Size
D-Lock Size
A standard D-Lock will easily fit around your bike and normal bike racks. If you have a particularly wide framed bike you can get wider and longer shackles. Alternatively, there is also a range of mini D-Locks are that specifically for use just with a standard bike rack. You won’t be able to fit your bike around a lamppost with a mini.
For security, it is best to get a D-Lock which will fit your frame and stationary object without leaving too much internal space. A common way for thieves to defeat your D-Lock is by slipping another object like a crowbar inside the shackle and leveraging with enough force to break it open.
Shackle Diameter
When choosing a D-Lock, the thicker the shackle diameter is, the more secure it is (especially against bolt cutters). However, the trade off is weight. Some very sturdy D-Locks can weigh over 2.5kg. One tip is to lock your bike high on the frame and off the ground to make it harder to use bolt cutters.
13mm & Under:
Under 13mm shackles can be cropped with most standard bolt cutters while some determination.
The quality of steel used in the shackle can increase the time this takes. Ideal for quick visits to the shops.
13mm – 16mm:
At this diameter it becomes much harder to crop a D-Lock with a standard bolt cutter.
Good for locking to the bike rack outside the office.
16mm & Over:
With a shackle this burly only the largest bolt cutter jaws with sustained effort with crack through.
It’s unlikely a thief will have the time or tools to cut through. Great for locking your bike overnight.
Locking Mechanism
Deadbolt Locking
Most D-Locks will now use a deadbolt locking mechanism. A deadbolt cannot be moved to the open position except by rotating the key.
Look for a double deadbolt for enhanced security. This means there is a locking bolt on both sides of the crossbar. Locking the shackle on both entry points greatly improves twisting and cutting resistance. Even if a thief cuts through one end of the shackle, it’ll be much harder to twist the shackle out of position.
Some brands even offer quadruple deadbolt systems which lock the shackle to the crossbar in four places for maximum resistance.
Construction
Lock Material
Almost all D Lock shackles and locking mechanisms are built out of steel. However, some locks will be constructed from hardened steel. By tempering steel if becomes harder and less brittle making it much tougher to cut through.
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.
Mounts
If you commute to work or use your bike daily, then having a mount to fix your lock to your bike frame is a great way to improve portability. Many brands will include easy to use frame mounts with their D-Locks but check the product description first.
Frame Protection
D-Locks with vinyl covers, moulded end caps and rubber coatings all ensure that your bike frame is safe from scratches and damage to your paintwork.
Delivery & Guarantee
UK Delivery Information
International Deliveries – Temporarily Suspended 11/11/20
Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. We are no longer delivering to Northern Ireland.
Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.
Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.
Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.
Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the 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.
