Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Poor
314 reviews
KRYPTONITESelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
50 years ago, Kryptonite began with a mission. While much has changed in bicycling, and bicycle security, our objective remains the same, we are here to empower you to protect what you value.Through constant innovation, expert guidance, and our never-ending commitment, Kryptonite will continue to pursue our passion and do everything we can to ensure you can go where you want, when you want by offering smart, serious security solutions.
KRYPTONITE (kryptonitelock.com) has 314 customer reviews on The Fair Hearing, with an average rating of 2.6 out of 5.
Showing 173 reviews with 1 star · Clear filters
Ordered a replacement key, tooks months to arrive - replacement key doesn't even work. Tried to contacting the customer service and i got one reply after 3 months, still no resolution. They were happy to take my money for it though. Shocking aftercare, non existent customer service
By syed A.
Registration for ATPO failed due to a technical issue with Kryptonite's website. I then sent them a service ticket on Aug 5 with all details to register for ATPO. It is now Sep 10 and I have received no response other than an automated acknowledgement. I bought the Kryptonite lock specifically because of their ATPO program and the piece of mind it was supposed to deliver from carrying their "insurance" on my e-bike. I regret my purchase of the Kryptonite lock. In hindsight I should have gone with a competitor whose lock is better reviewed but who lacks an equivalent ATPO program.
By Ankit G.
Response from KRYPTONITE· Sep 17, 2024
We apologize for the delay in responding while we work through a large backlog. I have requested additional information from you so that a member of our team can assist. Thank you for your patience.
I bought Kryptonite U-Lock in April. My bike got stolen and thieft cut the lock with angle grinder in a matter of seconds. I claimed it to the company as I bought ATP together with the lock. Since then I did't receive any answer to my claim no. 109762. It looks like they cash the money from customers and do not care about holding to the terms of the ATP.
By Wojciech P.
I ordered spare keys - a right which was included with the lock i purchased, and after 10 months i still haven't received it! i can't believe it
By Osvaldo C.
Ich habe mir ein Kryptonite Evolution Series 4 Integrated Chain 1090 gekauft. Leider kann ich mich nicht für das Anti-Theft Protection Offer registrieren, da meine Schlüsselnummer nicht akzeptiert wird. Laut den FAQ mache ich alles richtig, dennoch kann die Registrierung nicht abgeschlossen werden. Ohne ATPO ist das Produkt für mich uninteressant und ich werde den Artikel wohl zurückschicken müssen.
By Pascal P.
I contacted this company via their website contact information about a bike lock i purchased that had been cut through in an attempted theft. The ticket was submitted on Aug 3rd (it is now Sep 5th) and I haven't heard a peep from them.
By Conall O.
My bike got stollen on the 12/04/2024, barely a month after I purchased the bicyle in broad day light secured by Evolution Mini-9 U lock. I submitted a claim right away and never had any reply other than the auto response stating: "A 30 day waiting period from the date of the theft is required before we can process your claim (in the event of the recovery of your bicycle or powersport vehicle)". Today is the 2nd of September 2024, I have sent an other claim and chased every month the support address (12/05/2024 - 04/06/2024 - 04/07/2024). After having spent and lost money on a bike, a lock and an extra cover I can claim this company is not as trustworthy as it used to be.
By Adrien
Response from KRYPTONITE· Sep 5, 2024
We apologize for the delays in responding to your claim. I have requested additional information from you so that a member of our team can follow up.
And again I am having to put on a bad review!! This is now my 3rd Review of this Company. I have received now two replacement keys that both do not work. I have risen a ticket nearly two weeks ago and nobody has replied again!! Really bad custommer service and I still don't have a key :(
By Sam K.
