Bulldog STD Bike U-Lock – 13 mm Hardened Steel Shackle (115 × 230 mm) – X2P Double Bolt, Z-Cylinder Core, 5 Keys & Mount Bracket | OnGuard Bulldog U-Lock 13mm Hardened Steel, Keyed, 4.5x9" Black/Yellow

I love that this lock has a mounting bracket! It's a substantial lock so it does add some weight but I think that's what you want when you get a U-Lock. It's easy to mount and easy to use. It comes with 5 keys including one lighted key. It can be difficult to decide where to keep your lock but that good thing is that you can move the mounting brackets around if you need to relocate it. Great lock and great price!

The lock works great but the best thing is having multiple keys to use nit just 1 or 2.

Using this on a bike worth less than 20 dollars on a university campus. The bike is still with me after 2 months. I am guessing it is better than my previous 15 dollar cable lock from local store that someone tried to saw through before I replaced it with this one. It is heavy and has a mean look that deter away bike thief. So far so good. I would not trust it with a multi-hundred dollar bike, though.

It works well to secure my e scooter, however the bracket doesn't fit around the steering column (about 2" diameter) so I have to put the lock in my back pack.Perhaps a bracket that allows it to fit onto e scooter steering columns would be a great selling point since these are so popular at this time.

It fits tightly to what I want it for. And it's a very tight fit. Not real heavy just right. The key insert is to be done precisely exact or it won't insert.

I have an older one of these locks that was fantastic. I recently purchased a new one, used for 1 trip to lock up bikes, and now the keys no longer open the lock. Additionally the keys have all started breaking. Seems to be fabricated much more cheaply than they used to be. Unfortunately the return window has closed by a couple weeks and I have a useless, used 1 time lock. Stay away.

Little heavy on the backpack my daughter said but I feel confident that it won’t be easy to take her bike at school

The lock is functionally great, but there was some surface rust on the exposed "hooks" of the bar, (the part that goes into the locking mechanism). I suspect this is primarily from the seller storing the lock in humid conditions rather than something that comes from OnGuard. Great lock otherwise!

Buen material y marca

Pas cher et livré à temps

Recibí el producto totalmente nuevo y desde que quitas el empaque se siente que el candado es bastante resistente, lo he ocupado a penas una semana, y me siento muy seguro cuando lo ocupo. Creo que la cantidad de llaves de repuesto esta bastante bien, por si llegas a perder alguna no tienes que preocuparte ya que todas abren de manera sencilla y sin forzar la cerradura o algo parecido, ademas tiene un accesorio perfecto para sujetarlo a la bici sin que estorbe para usarla

Para el precio se siente de muy buena calidad. Me gusta que traiga tantas copias de la llave. Se siente seguro pero no inviolable, probablemente sea buena idea complementarlo con otras cadenas o comprar uno mas robusto.

El candado en sí bien, llave también pero el soporte que trae para poder montarlo a la bici es más bien malo, el tamaño del aro es limitado y no queda bien fijo lo que hace que se el candado se rote cuando se transporta en el