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So you opted for a bicycle instead of a car. You're doing your part to help the environment and stay in shape. You're wearing your helmet, using bike lanes, maintaining proper posture, and even keeping your bike clean. Guess what? It's not enough...because there seem to be bicycle thieves everywhere. According to the FBI, 231,238 bikes were reported stolen in 2006. Hey, even Lance Armstrong had his bike taken for a joy ride earlier this year.

If you want to live the bike-friendly life, you've gotta protect your ride. This process begins with buying one of the many types of bike locks (U-Lock, Chain, Cable, O-Lock, Bike Club, or Cuff Locks) and registering your bike in a national database. For more theft-protection tips, let's consult those knowledgeable folks at REI.

7 Ways to Protect Your Bicycle