Choosing the best bike lock depends on where you store your bike, how you use it day to day, and what type of bike you have. This guide explains the main types of locks and how to use them effectively.
How do I keep my bike safe?
A good lock is your first line of defence against theft. Combine a strong lock with secure parking (e.g. fixed anchor or busy area) and, where possible, lock both the frame and wheels. For high-value or electric bikes, consider two different lock types together.
Types of bike locks
The main types of bike locks are:
- Cable locks – lightweight and affordable; best in low-crime areas or with another lock
- Chain locks – flexible and adaptable; strength and weight vary by model
- U-locks (D-locks) – tough and deterrent; limit where you can lock; pair with a cable or chain to secure wheels
- Anchor locks – for securing the bike to a fixed point
- Locks with alarms – add sound if the bike is moved
- GPS locks and trackers – help recover a stolen bike
Cable locks
Cable locks are among the most common and are easy to use. They are generally lighter and more affordable than chain or U-locks. They work well in low-crime areas and are useful on their own or in combination with another lock to secure the frame and both wheels.
U-locks
U-locks are tough and solid and are one of the most effective ways to protect your bike. The visible metal shackle is a strong deterrent. They are not always large enough to secure the frame and both wheels, and they can limit where you can lock (e.g. to a stand or post). Using a U-lock together with a chain or cable lets you secure the frame and wheels. U-locks usually have a removable crossbar and are locked with a key.
Chain locks
Chain locks come in different strengths and can be heavy to carry. They are adaptable to almost any bike and locking point and can be locked with a key or combination. If the chain is secured with a separate padlock, you will need to carry the key and the padlock can be awkward to transport.