La verdad que no vale la pena este producto por el precio. En el mercado existen mejores opciones de mejor calidad y seguridad a mejor precio.

Looks solid, accepts by insurance companies and i still own my bicycle

Tenemos dos en casa, de momento no nos han robado las bici 😂 se ven fuertes y son prácticos de llevar

Muy buena calidad, lo uso diario y con el tiempo cuesta cada vez más abrir y cerrarMe da un poco más de confianza al dejar li bicicleta

Je viens de le recevoir aujourd'hui et je viens de m'en servir au moins une dizaine de fois !!!J'habite en ce moment sur un campus universitaire donc beaucoup de distance à parcourir et pleins, pleins d'endroits divers où accrocher mon vélo avec ce U.Comparé à un antivol de D4LONG, il est mieux fini, parait plus solide et a une petite récompense (un prix spécial que l'on décerne pour les antivols ?) qui date de 2018 appremment (donc super récente puisque l'on est en 2018 à l'heure de ce commentaire ;) ).C'est pile poil la taille qui convient pour attacher le vélo à un ratelier ou un poteau, une rampe par une roue ou par le cadre...aucun problème, je le recommande pour les gens comme moi qui ne veulent pas se faire piquer leur vélo car on en a besoin et que ce soit dissuasif.Maintenant mon vélo ne coute pas bien cher donc je pense que j'investirais plutôt dans une chaîne ou pour le modèle à acier plus résitant de la même marque sur un vélo plus couteux.

De diseño agradable, pesado pero es resistente a que lo corten, además de que es fácilmente transportable, idéntico a la descripción!

Llego en tiempo, parece bueno, se ve resistente. Éste candado será como complemento ya que tengo otros 2, por lo tanto al dejar mi bicicleta, le podré 3 candados, Yo creo que con eso tendré como para dejar sola mi bicicleta una hora y media.Las llaves abren y cierran bien.

El material es resistente y permite llevarlo cómodamente en la bicicleta, un poco pesado pero no afecta al llevarlo en la bicicleta.Proporciona la seguridad requerida para dejar nuestra bicicleta en sitios públicos con mayor tranquilidad. Algún accesorio de seguridad adicional es requerido para las llantas pero con éste podemos proteger el cuadro principalmente.

Sin duda alguna la mejor elección para disminuir la posibilidad de robo de tu preciosa bicicleta. Tiene una recubrimiento de goma que evita que el mismo candado raye el marco. Uno de los puntos no muy favorables es su peso, pues posiblemente supere los 500 gramos. de peso sin embargo, cuenta con un accesorio para poderlo llevar fácilmente en el marco de la bicicleta.Si nunca has tenido uno de estos, encontrarás algunas dificultades al inicio, pues necesitas practicar la habilidad para montarlo y desmontarlo en la bici, pero con la práctica lo podrás poner y quitar en unos segundos.

Hasta ahora todo a funcionado muy bien, el paquete llegó antes de lo esperado y en buen estado. Si bien el candado funciona a la perfección hay algo que no comenta en la descripción y que viene especificado en el paquete, el nivel de protección es MEDIO, del 1 al 10 está en el 5 y la perforación del candado en"u" es muy pequeño, lo que lo hace difícil encontrar un lugar donde poder asegurarlo bien o siquiera poder utilizarlo, yo lo compré en conjunto con la cadena KC612, si no tuviera ésta sería muy difícil.

Esta U es verdaderamente buena en términos de seguridad y mecánicamente funciona a la perfección, jamas se me ha atorado la llave ni he tenido problemas para abrirla, cosa que me ha pasado con otras, y el tamaño a pesar de ser pequeño, con un poco de práctica se amarra en cualquier lugar.

If you care enough to buy a lock for your bike in the first place, then you should care enough to get a lock that works better and easier than another lock, on top of giving you great security, so you will get into a habit of employing it all the time and not be lazy because the lock takes more effort to use. Lazy? Yes, and laziness is the biggest reason to not use a lock you bought to protect your bike. Just having a strong U-lock isn't good enough. You have to use it. An unused lock is the worst security feature a lock can have. Easier, with top security features is just better. You'll use this Kryptonite lock and that will save your bike more times than you will ever know. I put it in the same realm as building a better mouse trap.Having returned an On-Guard 5510 Mini U-Lock with Additional Security Cable (4 feet) to Wal-Mart where I had bought that lock, I chose this Kryptonite lock instead because, although On-Guard claims to be "obsessed" about security they sure aren't when it comes to product design. Bottom line is if you have a lock that is not as easy for you to use, then you will of course use it less and take a bigger risk with your bike becoming a crime statistic (stolen).Amazon had Wal-Mart beat on price for this Kryptonite lock, too. Comparing Amazon's service to Wal-Mart's wouldn't really help, since Wal-Mart forgot what service is years ago, and Amazon has consistently provided me with better service in all areas for many years now. Shipping for this lock, along with - to make securing my bike a more complete security system for my wheels and saddle along with making more work for a would-be thief - and a took just 4 days using Super Saver shipping, and you can't beat that. My , that I purchased at the same time, was packaged and sent along separately, but still arrived on the same day. Look for those reviews from me, too, should you like this one.This U-lock is very tough and I don't think you could easily find something that would cut through it, at least not something you could easily carry with you and go unnoticed. Seems more like someone would have to use a diamond wheeled grinder type of cutter with a power drill, at the very least, and that sure wouldn't be discrete or fail to draw attention. So while someone would not be able to easily steal your bike with this lock - if properly secured - for errands, short trips to a store, or in a busier type of place where you could even leave your bike all day, it won't be for you if you leave your bike in high-crime areas. I wouldn't trust this lock to be the only means of securing your bike at night for a long period of time or in an area with few people around and little activity during the day, as people being around and seeing your bike is one step in your security plan to make stealing your bike a less attractive option for a thief.One thing I really like about this Kryptonite lock over the On-Guard U-lock is that while On-Guard uses a dual, straight bayonet system on both sides of the locking arm to attach to the shackle, this Kryptonite U-Lock has an easier and better system to attach the locking arm onto the shackle. It's not dual, straight bayonet on both sides. One side of the locking arm of this Kryptonite lock has a short, angled part of the locking arm that helps you to guide and fit the locking arm into the shackle for that side, then you just swing the locking arm around the frame of your bike and a stationary object and clasp the other side of the locking arm (which has a straight bayonet fitting) into the other side of the shackle, then lock it by turning the key.To me, Kryptonite's is just a better design that makes attaching the locking arm to the shackle a little easier in warm, dry conditions and especially easier in cold, wet conditions. It also makes it easier to attach the locking arm to the shackle by obtaining a little leverage, if needed, for those times when you have to use a stationary object (like a pole) that is larger in diameter than some others when you lock up your bike. The dual, straight bayonet system for the locking arm with On-Guard's lock makes you press down and use compression alone (your muscle strength) for attaching the locking arm to the shackle. Kryptonite's design, with one side of the actual locking piece of the arm at an angle, lets you lock that side in and pull as well as push down on the locking arm if you need to.As luck would have it, since I have received this lock the weather has taken a turn from nice and warm to colder than a mother-in-law's kiss, with ongoing cold rain or drizzle and I have really found out just how much better Kryptonite's design and locking system works, which means it just makes it that much easier to lock up my bike. Locking up my bike properly is a habit I don't want to break. If a lock is more of a pain in the butt for me to use, like the dual, straight bayonet system On-Guard uses in their U-lock design, then I'm less likely to use it all the time, which means a thief will be more likely to take my bike. And that would make me sad.In short, you spent your good money on your bicycle purchase. Spend a little more and get a good U-lock like this one, or a stronger one if your area is more of a high-crime/high risk area, and use it along with a good cable like the . Little out-of-pocket cash, but you will have a security system that will intimidate most thieves, so the opportunists will give up without even trying and the more determined thief will move on to an easier target.For those interested in Kryptonite's Anti-Theft Protection offer, yes, you can register the lock and your bike with Kryptonite. You must verify your bike's serial number and purchase price with Kryptonite plus pay a yearly fee, along with other requirements and restrictions. It is all detailed in the enclosed package with the lock, and is available on Kryptonite's website if you want to know more.

Cannot be broken. Need not saying anything else.