Bicycles can get very expensive… especially electric bikes or carbon fiber road bikes. You want to make sure nobody steals the bike or any of the components connected to it like the seat post, saddle or wheels. There are many ways to go about securing a bike but the most popular way I’ve heard and the most proven technique I’ve tried is to lock the frame and rear wheel to a secure rack while looping a cable through the front wheel and saddle rails. In some cases, a bike thief might steal an entire rack and all bikes attached to it and in other cases if left outside overnight, the bars of your u-lock could be cut and cables snipped. It’s not possible to secure against every kind of attack but following these steps makes you less vulnerable because it adds time and effort required to steal. It also puts you one step ahead of the other bikes that are locked up at the rack.