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🔐 Lock in your peace of mind with Kryptonite’s unbeatable flex & strength!
The Kryptonite KryptoFlex Bike Lock Cable features a 12mm thick braided steel cable that offers robust anti-theft protection. Available in multiple lengths, the 6-foot model combines flexibility with heavy-duty security, ideal for bikes, outdoor equipment, and multi-vehicle lock-ups. Its resettable 4-digit combination lock ensures personalized security, while the included bike mount guarantees convenient transport. Backed by a limited lifetime warranty, this lock is engineered for durability and peace of mind.

| ASIN | B084ZYY2CW |
| Additional Features | Portable |
| Best Sellers Rank | #10,748 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #27 in Bike Cable Locks |
| Brand | Kryptonite |
| Brand Name | Kryptonite |
| Color | Black |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.2 out of 5 stars 1,104 Reviews |
| Finish Types | Natural |
| Global Trade Identification Number | 00720018005223 |
| Included Components | Combo Lock, Mount |
| Item Dimensions | 8.27 x 5.51 x 2.76 inches |
| Item Type Name | Bicycle Lock |
| Item dimensions L x W x H | 8.27 x 5.51 x 2.76 inches |
| Lock Type | Combination Lock |
| Manufacturer | Kryptonite |
| Manufacturer Part Number | 5223 |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material | Metal |
| Material Type | Metal |
| Model Name | Kryptonite KryptoFlex 1218 12mm Combo Cable Bicycle Lock |
| Model Number | 005223 KryptoFlex 1218 Combo |
| Number of Pieces | 1 |
| Recommended Uses For Product | Cycling |
| Shape | Round |
| Special Feature | Portable |
| Style Name | 6' Combo |
| UPC | 720018005223 |
| Unit Count | 1.0 Count |
J**P
Works perfectly to secure your electric bike
Works perfectly to secure my electric bike at a good price
J**N
Length and strength
As always, Kryptonite quality! I like that these come in 10' length, good to use for multiple bikes or motor bikes.
M**S
The keyed version is great!
Better than expected (after reading many reviews). This is after 3-4 weeks of use. Bought for my 2024 Honda Rancher 420 ATV. Easy mount on the front bumper via the included strap, and looks great. Plenty secure. Bought the keyed version, since the combination lock had some mixed reviews. Will update after 9-12 months.
S**T
Mounting bracket doesn’t work (see picture)
Absolute garbage lock and mount. The mounting bracket has 4mm hex bolt that just spins freely and won’t come out so you can’t mount this onto a frame. Avoid this product at all costs. I’ve drawn an arrow on the photo showing which hex screw won’t come out in order to mount to a bike frame.
O**O
Lifetime Warranty and Support?
EDIT: After 9 days I received a reply and notification that they would send me a new lock. I am updating my review from 1 star to 4 to reflect the fact that they do (although slowly) support their products. I bought this lock and spent a little more than the others on Amazon because it was from a (quality?) brand that I was familiar with and came with a lifetime warranty. After some light use the lock no longer functions. It was stored inside and never has even been exposed to rain. Contacted Kryptonite customer service and got no response. Sent a new message after 7 days and still nothing. Extremely disappointed in my purchase and customer experience.
B**D
Works Well for Large Bikes
Flexible and long for use on large ebike.
C**N
Versatile Protection
Having two approaches to opening this cable lock, one with key and the other with combination, is the best of both worlds for me. As I age, sometimes the code or combination eludes me and it makes sense to have a plan B in case. Overall construction is solid, the lock mechanism smooth and most important...it works! Four stars are the score only because the stiff coil of the cable really can fight you when two hands aren't enough to keep everything in place while you lock up. Tough balance in design since the cable is so beefy for a secure result.
A**M
High Quality Bike Lock
This seems to be a very good option for our suburban parking needs. The grocery store, local restaurants, etc. It isn't used in a high theft area, so I expect it to work well. The coating around the chain is a nice quality plastic. It isn't too heavy. The length is actually rather dramatic. It is a little expensive, but seems well worth it.
T**N
Lock jammed
Within 3 weeks of using the lock it jammed and would not release, had to cut it off. What a disappointment in what I thought was a quality lock.
W**.
Default Code not working.
If I can put negative stars, I would!!!! Please check the item before sending it to your customer please!!!!
R**R
Great lock
Works well
C**N
Considero que es bueno
Su apariencia es buena y funciona bien
D**I
faible résistance à la pince
L'antivol constitue un bon compromis, il est pratique et semble solide La longueur est suffisante et il est possible, avec la patte de fixation, d'accrocher le cadenas au cadre du vélo lorsqu'il n'est pas utilisé Je regrette simplement que la clef ne reste pas solidaire du cadenas lorsqu'il est ouvert, comme j'ai sur un autre antivol *** MISE A JOUR *** A l'usage il est certe pratique, j'avais signalé que je regrettait que la clef ne reste pas accrochée au cadenas lorsqu'il est enlevé. Cela se vérifie car il n'est pas nécessaire d'avoir la clef pour le fermer, et donc je me suis retrouvé à 20km de chez moi avec le cadenas fermé et pas la bonne clef avec moi.... résultat un commercant m'a prété une pince et en moins de 5mn le cable était coupé ! conclusion achetez un U qui sera plus difficile à couper !
Trustpilot
2 months ago
3 days ago