Best Tips for Theft Prevention

• Always lock your bike's frame and wheels with a high-quality, modern U-lock (with a disc/flat key)
• Remove all detachable items like lights, bags and quick release parts and take them with you
• Lock to a bike rack, or firmly affixed (bolts covered in concrete) parking meter or sign pole - these are the most secure places
• See images to the right for locking depictions.

More Tips

• Record your bike's serial number. Take a photo of you and your unlocked bike. Keep the receipt. All will help you identify the bike.
• Always lock your bike, even if you're just leaving it for a moment
• Always lock through the frame and a wheel. Add a cable, cable lock, or second U-lock to lock the second wheel. See diagrams to the right.
• Buy the most expensive lock you can afford. U-locks are strong and better ones come with theft warranties. Only buy a U-lock with a flat or disc key. Cylindrical keyed locks are more easily picked. See diagram about keys to the right.
• Beware of locking to "sucker poles" that are loosely bolted down and can easily be removed.
• Avoid locking to private property. Store your bike inside if space is available.
• Lock your bike when keeping it in a garage or on a porch.
• Learn about the lock manufacturer's warranty and product replacement policy.

Additional Resources

• Read the Bicycling Ambassadors' Locking Your Bike brochure
• Look at the Chicago Bike Map's page on theft prevention

If it's stolen

• If the police recovers your bike, it's helpful and convenient if you previously registered your bike with the Chicago Police Department. Register your bike.
• Visit the Stolen Bike Registry