Bike Curious - The Right and Wrong Ways to Lock Your Bike @MomentumMag

A man sauntered into our neighborhood bike shop and examined the display of locks. He hefted the most impressive one, a massive, heavy chain, looked at the price tag and frowned. "I don't know if I can afford it," he said to the shop owner.
"Can you afford to have your bike stolen?" the owner replied.
This is, in a nutshell, the basic logic of bike security. Bikes are light and easily transported, convenient qualities not only for bike owners, but also for bike thieves. So it's worth taking a few simple steps to keep your ride locked down when you aren't around.
Once you've decided to secure your bike, you'll need a lock. There are several good options out there, depending on your needs.