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Master Lock

Master Lock Cable Lock, Set Your Own Combination Bike Lock, 6 ft. Long, Black, 8122D

  • Based on 5,012 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Mar 17 – Mar 18
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Size: Pack of 12


Features

  • Outdoor bike cable lock with combination is best used as a bicycle lock and to secure other outdoor equipment
  • Cable bike lock features a set your own combination, four-digit combination lock; provides a basic security level that is best used as a theft deterrent
  • Bike lock is made with braided steel for flexibility, and includes a protective vinyl coating that helps prevent scratching
  • Bike lock cable is 6 ft. (1.8 m) long and 1/2 in. (13 mm) wide in diameter
  • Includes one black combination bike lock cable; Set and reset your own combination

Description

If you’re not on your bike, make sure we are. Thieves will take the path of least resistance. Many times all you need is a tough cable lock. Quantum braided steel cables are tough and protective. Cable locks can also be used to further enhance your U-Lock or Cuff security. Whatever your needs are, there’s a Quantum cable lock made for you. From the Manufacturer If you’re not on your bike, make sure we are. Thieves will take the path of least resistance. Many times all you need is a tough cable lock. Quantum braided steel cables are tough and protective. Cable locks can also be used to further enhance your U-Lock or Cuff security. Whatever your needs are, there’s a Quantum cable lock made for you.

Brand: Master Lock


Special Feature: Resettable


Lock Type: Combination Lock


Item dimensions L x W x H: 70.86 x 0.5 x 0.5 inches


Material: Alloy Steel, Vinyl


Brand: ‎Master Lock


Special Feature: ‎Resettable


Lock Type: ‎Combination Lock


Item dimensions L x W x H: ‎70.86 x 0.5 x 0.5 inches


Material: ‎Alloy Steel, Vinyl


Recommended Uses For Product: ‎Bike


Style: ‎Bike Lock


Color: ‎Black


Number of Pieces: ‎1


Finish Type: ‎Painted


Included Components: ‎One adjustable cable lock, two keys


Controller Type: ‎Hand Control


Shape: ‎U Shape


Item Weight: ‎1.61 Pounds


UPC: ‎071649049491 716490494914


Model Name: ‎8122D


Global Trade Identification Number: ‎91, 14


Manufacturer: ‎Master Lock


Part Number: ‎8122D


Item Weight: ‎1.61 pounds


Product Dimensions: ‎70.86 x 0.5 x 0.5 inches


Item model number: ‎8122D


Is Discontinued By Manufacturer: ‎No


Size: ‎Pack of 12


Finish: ‎Painted


Item Package Quantity: ‎1


Special Features: ‎Resettable


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Limited Lifetime Warranty


Date First Available: September 2, 2003


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 17 – Mar 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
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  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great bike lock!
Size: Pack of 12
Review Image by Marsha Young Marsha Young
Great bike lock! My brother and sister-in-law have the same lock and recommended it to me. It’s very rugged and well-made, and I like the combination feature. I feel safe in the fact that it’s so well-made and have no fear of someone trying to cut through this and stealing my bike! And for the price, it’s outstanding! ... show more
Reviewed in the United States on February 3, 2026 by Marsha Young Marsha Young
    • good quality product that works as advertised!
Size: Pack of 12
nice item and sturdy quality
Reviewed in the United States on February 13, 2026 by Matt K
    • Great value good choice
Size: Pack of 12
Extremely sturdy easy to carry or attach. Simple and efficient.
Reviewed in the United States on February 21, 2026 by Dan
    • Great Product That Gets the Job Done!
Size: Pack of 12
The Master Lock Cable Lock, 6 ft. (8122D) is an overall great product. The 6-foot cable provides plenty of length to secure bikes or other items, and the set-your-own combination feature is super convenient—no need to worry about losing keys! It feels very sturdy and reliable, giving me peace of mind when I lock up my bike. One thing to note is that it’s a bit bulky, which might make it less convenient to carry around on longer rides. However, the extra thickness also adds to the sense of security. If you're looking for a dependable bike lock that’s easy to use and offers solid protection, this is a great choice! ... show more
Reviewed in the United States on June 14, 2025 by Nicole Lenzner
    • Easy to use, affordable bike lock
Size: Pack of 12
Came exactly as advertised. Very convenient where you store the cable on your bike. The combination is easy to use and easy to reset the unlock code. I was worried it might be bulky and hard to use because its circular but its not. The speed or easy of disengaging it from the bike and then using it was very easy. With the affordable price and easy of use, i recommend this product. ... show more
Reviewed in the United States on February 24, 2026 by St3ampunk
    • It is faithful to its function.
Size: Pack of 12
There doesn’t seem to be any particular problem with the product, and it seems to be faithful to its intended function. Even if there is a lock, it doesn’t mean there is no risk of losing it. Since there are cutters that can cut this, you always have to be careful.
Reviewed in the United States on February 16, 2026 by Kanghee Lee
    • Can’t Be Easily Cut
Size: Pack of 12
Unfortunately it’s a really good lock as it’s not easily cut. Would be very difficult to steal anything it locks up… However when it fails to open that’s not helpful! Bought this for my daughter to use while in Atlanta. Right away, we changed the code so she would be able to remember one she established. You attest the side dial and set the new code. We did that and tested the new code several times before locking up her bike. The next day I put the lock together and locked up her bike. She was able to unlock it herself and rode to a local Target. When she arrived, she called me and asked if I had difficulty putting the lock back together when I used it, I said no, although it was a bit “stiff”. I told her to push it together and that should be fine. She did eventually, locked the bike, and went into the store. When she came out, she could not open the lock. She tried several times and it would not unlock despite having unlocked for me, and for her. She asked for help, tried lubricating it (since it was stiff), and nothing would work. The lock would not open. She asked for help from Target employees and security. Even though they could not get it open. They tried cutting it with typical bolt cutters and it could not be cut. It took a locksmith to open it and they used specialized cutting tools. So while this is a great lock that is not easily cut, I am having a hard time giving it more than one star because she used it three times before it wouldn’t open. It’s being returned. ... show more
Reviewed in the United States on June 1, 2025 by Tammayrend
    • Just a bit annoying SOMETIMES
Size: Pack of 12
it comes with a clip to attach to your bike which is nice. just that it's so stiff and wound up that it CAN be annoying to lock your bike sometimes, but not too big of a deal. setting your code takes like 30 seconds too. if you feel that it's hard to open the numbers have to be closely aligned.
Reviewed in the United States on September 16, 2025 by saksham_6174

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