The Lock8 has no keys to lose or combinations to remember. Instead, you unlock it using your smartphone. It also contains a motion sensor, a temperature sensor and a hot wired cable to sense any attempted tampering with the lock. And once someone does mess with it, they get a siren blasting in their ear.
But wait, there's more. You can also send a code to your friends' phones so they can unlock it and use your bike or so they can track your bike if it's tampered with and you're away. And even more cool- this lock charges itself while you ride your bike. For more information and a cool video, click here.