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Your cart is empty.The Kryptonite Kryptolok Combination U-Lock features a 12.7 mm hardened performance steel shackle with a double deadbolt anti-rotation design that resists bolt cutters and twisting leverage attacks. Rated at a 6/10 on our security scale, the Kryptonite Kryptolok Combo U-Lock is good for quick stops in a metropolitan area, a couple hours in the suburbs, or all day & overnight in rural areas. It also includes our patented FlexFrame-U Bracket providing convenient multi-location U-Lock transport. These great features, along with our support programs like Combo Safe, Anti-Theft Protection, and a Lifetime Warranty, make Kryptonite Bicycle Locks the best choice for protecting what you value.
Sage
Reviewed in the United States on March 15, 2025
Diverse in it's ability to adapt to any preference of design, this is my favorite lock this far. The u-lock is considered best amongst other designs and the one accomplished it's goal and fit to any bike position.
Puttly
Reviewed in the United States on March 13, 2025
Works well. Convenient that it’s a combo.
Cathy
Reviewed in the United States on February 13, 2025
Very nice lock. Heavy though.
Sue
Reviewed in the United States on January 11, 2025
Excellent lock. Combo makes use a breeze, and no need to carry keys. Extremely easy to change combo. The unlatch mechanism is very smooth, unless it is under extreme tension, which is likely the problem with most of the negative reviews. Ie: if you have to force the lock together to get it to latch, you need to force it together while you try to unlatch (to reduce the tension). This is the only lock I will buy from now on.
x
Reviewed in Spain on September 30, 2024
diría que funcionaLos ladrones intentaron romperla con un cortador de pernos. Si no hubiera olvidado activar la alarma, la habrían dejado antes
Donaldos
Reviewed in the United Kingdom on September 28, 2024
step-through bike necessitated putting mounts on side of downrod; works just fine, no interference with peddling. easy to lock up, easy to unlock. would buy it again
Tom V.
Reviewed in the United States on September 17, 2024
Heavy, strong. I like that's is combination. Expensive but a definite deterrent. It is very heavy though, almost weights as much as my aluminum cruiser lol. Cleanly. Mounted between frame. I do like it.
Benjamin J.
Reviewed in France on December 4, 2024
Répond parfaitement bien aux attentes, cadenas robuste mais pas trop lourd, pas besoin de clé donc très pratique, je recommande !De plus, il convient aux assurances.
Josh Beans
Reviewed in the United States on December 21, 2024
Product exceeded specs and photos posted. Very durable, quality item with easy to use and convenient features. Very impressed.
Aslan M.
Reviewed in the United States on December 16, 2024
The best bike u lock
Craig M.
Reviewed in Australia on December 12, 2024
Just as the title says.
Marco
Reviewed in the United States on November 11, 2024
I used this lock for less than a month and today the lock would not open anymore. I tried to use WD40, graphete greese, mallet but not luck. I use the same combination in all my locks so I know that is not "senile dementia" case and the combination is right. Now I checked the reviews and there are other 6 reviewers reporting exactly the same problem on locks 1-2 months old. In my case I was lukcy because the item was still in the 30 days return window. Amazon refunded me without sending the lock back (for obvious reasons) and offered $40 to compensate for the Locksmith, that in DC will be about $100. Bottom line, Amazon went beyond expectations even though it should probably stop sell this item and Kryptonite lost my business because they do not offer any refund for situations like this.
MiSchneider
Reviewed in Germany on October 29, 2024
Die Zahlen sind geschützt durch ein Riegel, so dass dass die Zahlenkombination nicht nass oder dreckig werden können. Ein tolles Zahlenschloss und Kryptonite AAA
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