Kryptonite Keeper Folding Bike Lock, 2.75FT/3.25 FT Long Compact Lightweight High Security Anti-Theft Foldable Bicycle Lock with 2 Keys and Mount for E-Bikes Scooter Road Mountain Bike

Best lock I have ever used, e-bike 2 locks works great

I had to graduate from a simple cable lock for my beat-up hybrid bikes to something a little more secure for a modern Class 3 E-bike. This folding lock is moderately secure, enough for shorts stops and more where I ride. The length is sufficient to lock a bike frame around a good size post or other sturdy object, and simple to operate. While it's not light, it's not ridiculously heavy. Most importantly, it easily fits into the side pocket of a small rear rack bag. The lock itself is coated with a soft material so it won't scar your bike during use. Not as secure as a U-lock, but more versatile. And not as heavy or as bulky as a similar size chain lock. Seem like a good compromise between security and weight for those riding in a rural or suburban environment or for short stops for lunch or shopping.

Good solid little lock that fits nicely on a bike. The way it is designed it easy to use for relative safety anywhere around town. I would not recommend this for use in a really threatening, high crime neighborhood. I feel that this would not provide the "ultimate" protection you are looking for, but for the rest of us going to school and work that want to park our bike for a couple of hours around a pole and simply don't want a teenage boy walking away with our bike. This is great and easy to use. Also if you have multiple locks, the keys are numbered so you can keep them straight from one another...

I am rating the lock not Amazon's delivery, so I'll give it 5 stars. The lock is sturdy and easy to mount and use. No, it wouldn't stand up to a grinder, but I never leave the bike out of public sight or for very long. It's not too heavy and fits my folder perfectly. Next day delivery took over a week and a customer service call but other than that it was great.

Great lock for the price. It isn't maximum security but in my relatively low crime are it does the job. Attaches right to the frame and works great

The lock is great but won’t stay mounted it is always falling or sliding around probably going to be home when I need it

The flexible hinges allow you to wrap this around, oddly shaped objects. It folds up nicely and stows on the bike easily. I lock and unlock my bike multiple times per day and this particular bike makes that task much simpler and quicker.

Strong Lock quality: Ok

Da ich mit meinem vorherigen Kryptonite Schloss gute Erfahrungen gemacht habe, habe ich mir nun das 510er gekauft. Das Schloss hat eine Ummantelung, damit der Rahmen nicht beschädigt wird. Beim (Auf-)Schließen hakt nichts und die Glieder sind gut beweglich. Für mich sind die 100cm ein Minimum, da ich andernfalls nicht überall den Rahmen z.B. an einer Straßenlaterne anschließen kann.

The lock feels sturdy and well-made. It's a bit heavy, but I suppose that's necessary. It comes with two sets of keys and is very easy to fold and unfold. I recommend it without hesitation.

Perfect product to me especially for my scooter in my location, whenever I go to the mall or grocery I don't worry that I will be lost it or someone will gonna steal it! right weight, right size right price, and the quality are ok for me.

Muy bueno

Too big for me