I use two locks to lock up my bike. One's a large cable I use to lock up both my tires, frame, and a fixed pole/bike post. Then I use a Kryptonite Keeper lock to lock the whole thing. Then I use a cable bike to lock my seat to the front wheel. My wheels are quick-release while the seat isn't. But, I still make it as difficult as I could if someone wants to try ..
Location: Northern Florida, USA
I will say that there is an easy and portable way to defeat all exposed locks/locking mechanisms, but I will not post it due to concerns for security. It has been around for decades, and no, I repeat NO exposed lock has yet to be made to defeat this method. It is probably because no lock company ever thinks that someone would use it.
Take care,
Jesper
"I am become Death, the destroyer of bicycles." NJS
Ensuring bike safety is crucial, especially considering the investment we make in our bikes and the joy they bring us. When transporting my bike, I take extra precautions by using a quality bike rack that securely holds it in place and minimizes any risk of damage during transit. I also double-check the straps and connections to ensure everything is tight and secure.
I never leave my "nice" bikes anywhere, including in my car.
My less-coveted bikes only get locked up in busy places using a Hiplok DX u-lock. It's not the highest rated u-lock available, but I was fed up with the weight of locks and this one I feel is a great compromise between weight and security.
Ultimately, in any place where professional bike thieves operate your only hope is one of the new breed of angle grinder-resistant locks, which are both very heavy and very expensive.
I never leave a bike out in public for longer than a short bit of shopping.