Just to give your Bike an extra protection than just bike locks, you can attached the BikeSpike onto your bike. It is a small device that attaches to your bike via a custom water bottle holder. It features a GPS chipset, cellular antenna, and accelerometer – which lets you monitor your bike’s location using a phone or computer, digitally “lock” your bike and get a push notification if it’s moved/tampered with, automatically alert contacts in the event of a collision, and it also monitor stats such as distance, speed, and favorite courses. Price at $150+