How can I secure my bike with a lock chain to prevent theft?

To secure your bike with a lock chain and prevent theft, follow these steps:

1. Choose a high-quality lock chain made of hardened steel.
2. Wrap the chain around a fixed object, such as a bike rack or pole.
3. Thread the chain through the bike frame and wheels.
4. Use the lock to secure the ends of the chain together.
5. Make sure the lock is positioned close to the ground to prevent leverage attacks.
6. Lock your bike in a well-lit and visible area to deter thieves.