Leaving your motorcycle or scooter behind is always a bit unnerving. For your peace of mind, Citadel has been producing a variety of locks since 1980. They are often named after big cities, for some reason.
The Manhattan is a rather traditional flexible 12 mm cable lock. It's easy to open and close with a single clasp. With a cable length of 1800 mm you have enough reach to safely attach your motorcycle, scooter, jacket or helmet to something immovable. The whole thing weighs about 500 grams, but thanks to a universal mounting bracket you won't notice a thing while riding. The holder can be mounted on just about any round tube. Three quality keys are included.
This lock received a security level 4/10. That is enough in some cases, but a single cable lock does have its limitations.