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Advice and Tips

How to lock your bike


It is any cyclist’s worst nightmare to have a bike stolen. Especially when you think it has been securely locked using a trustworthy device. There are however, many ways to make your lock do more to protect your pride and joy.

Make sure you lock it up effectively

It’s common sense to lock your bike to a solid and immovable object; think lamp posts, railings (where legal) and of course bike racks. What many people don’t consider, is how they lock their bike to said object.

A common mistake which leads to a significant proportion of thefts, is locking your bike by the wheel. By doing this, you are enabling any interested thief to steal your bike with minimal effort and noise. Most bikes these days have quick release wheels, so it’s as simple to steal your bike as it is for you to fix a puncture.

Even if your bike doesn’t have quick release wheels, a wheel is still designed to be removable. A prepared thief will likely have a couple of basic tools that make the job of pinching bikes far more easy. Allen keys and spanners rank pretty high on this list. A 15mm spanner is all they need to remove most wheels that are bolted, and if they have an adjustable spanner, then any bolted wheel is vulnerable.

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A badly locked bike

Lock your bike through the frame

The best way to avoid becoming a victim of this crime is to lock the bike through the frame. As a solid entity, the lock can’t be bypassed simply by undoing a bolt or a skewer. This makes it far more difficult for a thief to disappear with your bike in a matter of moments.

There are methods other than using cutting tools to free a bike from a lock; often the lock can be smashed against the ground and struck with a harder object such as a hammer. This can shatter the locking mechanism and render it useless. Try and keep the lock in a position where it’s impossible to use leverage or force against another surface.

An effective lock position, illustrated below, helps limit the risk to your lock being compromised. For extra security, consider running a cable lock through the saddle rails as well as the wheels.

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A well locked bike

Lock in a sensible and safe location

Dark alleys, side streets and secluded areas are perfect for thieves to work undetected. Though it may seem strange, it’s best to lock your bike in a reasonably public area with frequent pedestrian traffic. Thieves will not want to be spotted when they’re trying to cut a lock from a bike. A good option is near travel hubs such as train and bus stations, where there is constant traffic. There is also potentially a high number of CCTV cameras around these areas. Both these factors are likely to put off most criminals.

A securely fixed public bike rack

Pick a suitable lock for your bike

Most insurance companies, bike shops and police forces recommend you spend what you can reasonably afford on a lock. Putting a £10 lock on a £1000 bike won’t be an effective theft deterrent. In the case of insurance, it may invalidate your cover should you try to make a claim also.

The best way to assess a lock’s suitability for your bike is to go by the Sold Secure Rating. Sold Secure test the widest range of locks in the industry to see how they stack up against most methods of theft.

Obviously you can put a higher rated lock on a lower cost bike, and this is a good idea. But, putting a lower rated lock on a high value bike leaves it more vulnerable to theft. This can invalidate any claims when going through insurance.

Bikmo’s lock requirements

It is a requirement of your insurance policy to use a lock that is appropriately rated for the value of your bike. With so much choice available, it’s always worth shopping around for a good deal. You can often get a Gold rated lock for the same price as a Silver.

Gold rating

The highest rating given to a bicycle lock is Gold. This rating of lock provide significant protection against most thieves and the tools they’re likely to use. Tested for over 5 minutes being continually attacked, gold rated locks are the ideal choice for high-value bikes. Or, for anyone who frequently leaves their bike in a public place.

Bike value in excess of £1,500 

Silver rating

As a compromise between value and security, silver rated locks are suitable for short term locking in public places. They are resistant to most basic tools used by thieves.  Silver rated locks are expected to withstand up to 3 minutes of sustained attack.

Bike value between £251 – £1,500

Bronze rating

Designed to serve as a deterrent to impulse thieves, these are the lowest strength of the three ratings. They offer protection against some basic tools.

Bike value up to £250

For more information and help around locks – read our blog The Ultimate Bike Lock Guide