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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
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, May 6
Order within 20 hours and 51 minutes
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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 Name: Master Lock


Recommended Uses For Product: Bike


Number of Pieces: 1


Included Components: One adjustable cable lock, two keys


Model Number: 8122D


UPC: 071649049491 716490494914


Model Name: 8122D


Global Trade Identification Number: 91, 14


Manufacturer Warranty Description: Limited Lifetime Warranty


Manufacturer: Master Lock


Unit Count: 1.0 Count


Manufacturer Part Number: 8122D


Additional Features: Resettable


Lock Type: Combination Lock


Controller Type: Hand Control


Smart Home Compatibility: Not Smart Home Compatible


Style Name: Bike Lock


Color: Black


Shape: U Shape


Material Type: Alloy Steel, Vinyl


Finish Types: Painted


Item Dimensions: 70.86 x 0.5 x 0.5 inches


Item Weight: 1.61 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 6

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great bike lock!
Size: Pack of 12
Review Image by 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
    • Secure
Size: Pack of 12
Product feels strong and good quality, so it feels trustful to leave your personal belongings attached to it. Very friendly to use and switching codes it’s easy, which makes it easy to open, never had an issue of it getting stuck. Black color makes it disguise very good. Length is fine, gives you around enough length to attack your bike for example to a post and make it feel secure. I def recommended it’s for its good quality and not expensive as other options. ... show more
Reviewed in the United States on June 20, 2025 by Anthony Bustillos
    • Seems pretty secure and easy to use
Size: Pack of 12
Decent little cable for locking up your bike quickly while you run into a store or a building to grab something. Generally speaking I do not like to leave a bike unattended for too long because where there's a will there's a way.
Reviewed in the United States on March 31, 2026 by Chris m.
    • 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
    • Mounts to Bike Very Well
Size: Pack of 12
Review Image by Brock Warwick
Recommended. Mounts securely to bike and does not flop around. Easy to change the combination to your own numbers. Instructions are clear and easy.
Reviewed in the United States on April 9, 2026 by Brock Warwick
    • Unsafe known flaw
Size: Pack of 12
Discovered almost too late that many customers had experienced the SAME DESIGN FLAW in Masterlock 8122D: a correct combination not working. Purchased product in July, successfully reset combination, and had been using.* Running errands on my bike yesterday, I had unlocked my bike from one errand and was unable to insert the lock ten minutes later at my second stop, the combination lock still set to the correct numbers. I tried several things (rotating all numbers, setting all to zero, wiggling them, etc) to no avail. THANK GOODNESS I did NOT manage to make the lock work, instead walked my bike into do the errand, and when I returned home and tried every method, Fortunately I was not subjected to the security risk, uncertainty, time, and cost of having to have the cable to my bike or other locked item due to your failed product. On the Amazon reviews, I discovered Masterlock knows of this flaw. This would have been a security risk for me as a woman at night with no means of transporting myself and my bike home. This bike lock is unsafe and I will dispose of it immediately. *ALSO NOTED, as have other reviewers, that inserting and removing the lock was often stiff and required unwarranted exertion (flaw tell) also unreasonably tight cable coils (which render unsuable 3’ of the 6’ cable) ... show more
Reviewed in the United States on April 27, 2026 by JW
    • 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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