Bike theft is rife, at least in my experience. I've had friends whose bikes have been stolen, then you find them a few weeks later matte blacked and locked to a railing. Usually its ok if you lock the frame to something solid but if you've got nice parts they're likely to get stripped. I left my mtb locked outside my flat for 3 hours and someone nicked my brake blocks.
Bike theft is rife, at least in my experience. I've had friends whose bikes have been stolen, then you find them a few weeks later matte blacked and locked to a railing. Usually its ok if you lock the frame to something solid but if you've got nice parts they're likely to get stripped. I left my mtb locked outside my flat for 3 hours and someone nicked my brake blocks.