
Two items can protect you and your investment better than anything else: good lights and a strong lock. Lights help drivers see you, and a decent lock makes your bike a harder target for thieves. Here is how to choose both without wasting money.
Choosing bike lights
You need a white light at the front and a red light at the rear. Many countries require lights after dark, and using them in daytime also makes you more visible.
How bright should they be?
- Be seen lights (roughly 50 to 100 lumens at the front) are fine on well-lit streets
- See lights (roughly 400 lumens or more at the front) help you spot potholes on dark roads
- Rear lights should be visible from a long distance; many riders choose a model with a steady and a flashing mode
Features worth having
- USB-rechargeable batteries so you never run out of cells
- Easy mounting that you can remove when you lock the bike
- Battery indicator so you know when to charge
- Water resistance for rainy rides
Add reflectors on the wheels and pedals, and reflective strips on your clothing, to improve your visibility from the side.
Choosing a lock
| Lock type | Security | Weight | Notes |
|---|---|---|---|
| Hardened U-lock | High | Medium | Best all-round choice for most riders |
| Heavy chain with padlock | High | Heavy | Good for long-term parking |
| Folding lock | Medium to high | Medium | Packs compactly |
| Cable lock | Low | Light | Only as a second lock for wheels and saddle |

How to lock your bike properly
- Choose a sturdy fixed object, such as a bike stand or a solid pole, that cannot be lifted over
- Pass the lock through the frame and the rear wheel
- Keep the lock high off the ground and snug, with as little free space as possible
- Use a second lock or skewer for the front wheel and saddle if you park for long
- Park in a busy, well-lit place where people can see the bike
Write down your bike’s serial number and keep a photo of the bike. It helps the police and your insurer if the bike is stolen.
How much should you spend?
A common suggestion is to spend a meaningful part of the bike’s value on the lock. A good lock is cheaper than a stolen bike. Read our essential gear guide and cost guide for budgeting.
Final thoughts
Choose rechargeable lights that you will remember to use, and a lock you can carry every time. Together with a properly fitted helmet, they make everyday riding safer and less stressful.
This guide is for general information only. Bikes, prices and local rules differ, so check your bike manual and local regulations, and see a qualified mechanic for safety-critical repairs. If you have a health concern, speak to your doctor before starting a new exercise routine.