

🔐 Secure your ride, skip the hassle — lock in freedom with Master Lock!
The Master Lock 8143D is a 4 ft. long, 5/16 in. diameter braided steel cable lock featuring a preset 4-digit combination for keyless security. Its vinyl coating protects your bike from scratches while providing flexible, reliable theft deterrence. Ideal for everyday cyclists seeking convenient, durable protection backed by a limited lifetime warranty.






















| ASIN | B000BVXDZM |
| Additional Features | Protective Vinyl coating |
| Best Sellers Rank | #150 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Bike Cable Locks |
| Brand Name | Master Lock |
| Color | Black |
| Control Method | Touch |
| Controller Type | Jog dial |
| Customer Reviews | 4.4 4.4 out of 5 stars (47,733) |
| Finish Types | Vinyl |
| Global Trade Identification Number | 00071649217210 |
| Included Components | One combination bike lock |
| Item Dimensions | 0.47 x 0.03 x 0.03 inches |
| Item Type Name | Combination Bike Lock |
| Item Weight | 4 Ounces |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material Type | braided steel, vinyl coating |
| Model Number | 8143D |
| Recommended Uses For Product | Low security bike lock |
| Shape | Round |
| Style Name | 4 Ft. Preset Combo |
| UPC | 071649217210 |
| Unit Count | 1.0 Count |
J**E
Impressive Bike Lock
Title: Impressive Bike Lock - Top-Notch Security! Rating: ⭐⭐⭐⭐⭐ (5/5) Review: I recently purchased the Bike Lock and I must say, I am thoroughly impressed with its performance. As an new avid cyclist, security is of the utmost importance to me, and this bike lock has exceeded all my expectations. From the moment I received the lock, it was clear that this was a high-quality product. The construction feels sturdy and durable, reassuring me that my bike is in safe hands. The locking mechanism is smooth and easy to operate, making securing my bike a hassle-free experience. One of the features I appreciate the most is the generous length of the lock's cable. It allows me to secure my bike to a variety of objects, from bike racks to lampposts, expanding my options when it comes to parking locations. The lock's flexibility, without sacrificing security, is a huge plus. Additionally, the lock's weather resistance is remarkable. I've used it in rain and varying temperatures, and it hasn't shown any signs of deterioration. This longevity is crucial to me, as I rely on this lock to protect my bike for years to come. Overall, I can confidently say that the Bike Lock is worth every penny. Its impeccable security features, durable construction, and user-friendly design make it an excellent investment for any cyclist concerned about bike theft. My peace of mind has increased tenfold since using this lock, and I wholeheartedly recommend it to fellow cyclists seeking top-notch protection for their valuable rides.
A**.
Works well
This seems high quality and is easy to program the combination. It's flexible enough but seems sturdy.
A**A
Nice and simple
Works well
L**N
Lock for dumpster
Was easy to cut. By thieves
T**L
Numbers turn easy
Well made. easy to turn numbers
R**E
Easy to use for Phantom e scooters
My kids (11 and 12) use these to secure their electric scooters at school and other places. They are able to put the cable thru the hole in the wheel of their Phantom scooters. They do come with a preset code and you can not change it.
D**G
Cheap, effective for minimal Security, but think twice
So what irritates me most is the preset combination ! Yeah, that is right, it doesn't appear to be able to make your own combination for this lock. So if this is your only combination lock, probably fine, but I have other locks for equipment and having a new number is beyond reason. Otherwise they are fine, this is not for high security! they can easily be broken, but if you are just wanting to discourage a easy theft, then these will work fine. There are other locks that serve the same purpose and you can set the combination easily. For me this is a no buy! The lack of preset combination rules it out. Sadly, for me, I let them set around the house for three months before I took. look, otherwise I would have returned them.
N**N
Reliable and Easy to Use Combination Bike Lock
This combination bike lock is a solid choice for securing outdoor equipment or bicycles. The ability to set your own combination makes it convenient, and the 4-foot length provides enough flexibility to lock up bikes in various situations. The weather-resistant vinyl coating adds durability, ensuring the lock holds up well against the elements. The locks are easy to use and the metal cable feels sturdy, giving me confidence in the security. Having a pack of two is great for extra bikes or other equipment. Overall, this bike lock offers reliable protection and is easy to set up, making it a great value for outdoor use!
F**Z
Buen producto, es un candado super resistente y pratico, al principio me asuste con el seguro pero la clave viene junto al candado, cumple con su funcion y es muy practico y seguro.
S**S
Decent
M**L
A decent small lock for your bike. Note that this comes with a preset combination, so you cannot add your own combination.
D**P
It was perfect to use as our mobility scooter to lock up things in Disneyland. Kids could use it with no problem.
E**O
Very good and strong, the only disadvantage is the fixed unlock number