Master Lock 8143D Combination Bike Lock, 4 ft long, Black
- Bike lock is best used for basic security as a theft deterrent
- Preset four-digit combination bicycle lock for keyless convenience; combination cannot be changed
- Bike lock cable is self-coiling and features braided steel for strength and flexibility
- Protective vinyl coating prevents the cable from scratching your bike
- Bike cable lock is 4 ft (1.2 m) long with 5/16 in. (8 mm) diameter cable (includes vinyl coating)
Hani Jasmin
Keep your bike safe!
I take my bike everywhere with me. I have a bike rack on the back of my truck. This works well, so your bike does not get stolen off your rack. Then it is small enough to throw in your backpack to take with you so if you want to do some shopping or stop to eat. I would highly recommended it's very durable and very easy to use.
Jef Gaspar Sabrozo
Great lock.
I have had this lock on my bike for two years and has been okay, This as also been outside for about 5 solid months each year. During the winter months, it was stored on my bike in a shed, Granted my bike is kept in a pretty secure area anyway, so I don't this it has ever been attempted to be broken, so I can't comment on how secure it "really" is. Its purpose is mainly to keep kids from taking my bike and hurting it or themselves.
Sajid Shah
Not A Very Secure Lock
This is a good lock from a reputable manufacturer (Master). I purchased it to lock my bike up in my suburb town which is very safe. So safe I could probably leave my bike on its kickstand unattended, for a decent amount of time without it getting stolen. This lock is the cheapest lock of it type that you can find on Amazon or elsewhere (except a piece of junk from a dollar store). Do not leave your bike overnight or in a place with high bike theft with this lock because your bike will probably not be there in the morning. This lock can probably be cut in 10 second with a wire cutter. If you want a good lock that should be used in crime areas, areas with low foot traffic or areas with lots of theft (Manhattan, many other cities) make an investment in a much more expensive Kryptonite or comparable lock, preferably a U - Lock because those are the most secure. Feel free to comment and I will answer your questions to the best of my knowledge.
Emellyam Lynne
Perfect to have on hand.
Lightweight, easy to carry. I wrap it around the seat post of my bike and when my son and I bike, it's a lot easier to use this and secure both our bikes or just one bike really well, as opposed to the U bar that we have that's heavy and required being tossed in a backpack and making sure I had my keys with me. The code comes on it and easy to lock, unlock and use. I can't say I've seen anyone try to break it open, but if you want a lock that's unobtrusive when it's not in use and will do the job with minimal fuss, accessories or weight, this is precisely the lock that you should grab and have on hand.
Ella Baesso
Used for BreakOut Game in Classroom
I bought these to use around Scholastic boxes for a Breakout Game. They were a little snug to pull all the way through the boxes at first, but they did attach and worked well for my purposes. Because the numbers are raised in one part, it made it easier for my students to turn the numbers to unlock the combination. I really appreciated that.
Butch Gabriel
You get what you pay for - which isn't very ...
You get what you pay for - which isn't very much, mind you, but for $5 I just wanted something that'd keep someone from running off with my front wheel (I would lock the rest of the bike up with a proper U-lock, but it wouldn't reach through the front wheel), and that is what this does.
LeeAnn Shane Clutter
but I memorized the preset code more easily than I expected
This works well. It's weird that you can't choose your own code, but I memorized the preset code more easily than I expected. I don't live in a super bike-friendly city and we don't have a lot of pro bike thieves yet (knock on wood) plus my bike isn't high end (it's vintage and well loved... but not the type you steal for a high profit, lol), but it hasn't been stolen so far. I ride mostly in the city and lock my bike in public places around 2-4+ x/week It's long enough to go around most things, like light poles.
Nini Exarchou
Perfect
Perfect for a little precautionary security. It does come with a preset code so you won't be able to change it to something you'll definitely remember, but as long as you keep the code in a safe place where you won't forget it, you should be fine.
Maria Vallejo
Excellent value for a quick/accessor lock
I think I got this for about $5. For the price it's perfect for what it's capable of. I wouldn't use this lock alone if I were to leave my bike unattended for more than 15minutes but it's great as an accessory and/or quick lock. I just keep it coiled around my bike frame and it takes a few seconds to set the combo and wrap the coil around something. I usually use it together with an actual U-lock, using the U-lock to lock my back-wheel and frame to a post, and using this to bind my front wheel to my bike if not a post. Keep in mind however that there's resistance in trying to pull out the lock if you're trying to extend it, because it tries to keep itself coiled.
Artika Lata
Great lock for low-risk areas. Combination is set and cannot be changed.
This is an economic but durable solution for situation when you want to lock your bike in a public place. The section of the cable is by no means thick enough to deter anyone who really wants your bike. I would not let my bike with this lock overnight in critical areas, but this lock is fantastic when you stroll downtown and stop for a coffee or lunch somewhere. It comes with a fix combination, meaning you cannot set a more memorable one for yourself. Make sure you mark the four digits down somewhere (phone, maybe?) so you do not look like an idiot trying to steal your own bike!