KRYPTONITE Anmeldelser 

Very responsive and trustworthy company. They replaced my U Lock that was damaged with a refund and full lock replacement.

Katastrophale Qualität, wurde ich nie mehr kaufen - wird suggeriert, dass das diebstahlsicher ist, hat keine 20 Sekunden gedauert und das teuerste Keyptonite Schloss war auf geknackt...

I purchased a Kryptonite New York Diamond lock from an online vendor that turned out to be from one of the early production runs that were vulnerable to angle grinders where the shackle meets the crossbar. I contacted Kryptonite and with the help of Oleh in customer support, sent the vulnerable lock to Kryptonite so they could replace it with a new lock. After giving Oleh the serial number from the bottom of the lock, I was promptly provided a return label. Once my return reached Oleh, he quickly had my replacement out for delivery. I received the replacement lock and am very happy with the new one and with the service I received.

Their warranty scheme is incredible as they refunded me for a locksmith to come and cut the lock as well as that they send me a brand new lock.

Kryptonite est une marque qui n'a plus rien à prouver en ce qui concerne la solidité de ses antivols et de son service après vente, si vous voulez prendre soins de votre vélo et garantir la meilleur sécurité je vous conseille vivement de prendre un kryptonite ! En particulier le kryptonite evolution mini 7 qui est excellent ! Merci au service après vente notamment Oleh qui a su répondre à toute mes demandes. 💪🏻

Kryptonite Support was quick to respond and thoroughly professional regarding my case. I am extremely impressed by their trustworthiness regarding warranties and commitment to customers! TOP RATING for this company

I recently had an issue with my Kryptonite Evolution 1016 chain lock where the internal mechanism seized up. Since the lock was a few years old, I wasn't sure how difficult the warranty process would be. I reached out to their customer support and was assisted by Oleh.

The service was exceptionally fast, professional, and completely hassle-free. After providing my proof of purchase and a couple of photos, Oleh immediately approved a brand-new replacement lock under their Limited Lifetime Warranty. It is rare to find a company that actually stands behind their products this solidly. Thank you to Oleh and the Kryptonite team for the amazing support!

Oleh was super helpful for a replacement lock

Easy to communicate with service for replacement when the lock failed while under warranty. Thank you 🙏🏾 Kryptonite!!

I bought a Kryptonite New York Lock with my bike a few years ago based on their reputation. My bike was never stolen !
After a 4 years of keeping my bike safe, the mechanism of the key got gripped stuck, hence, the lock was unusable.
I contacted the customer service and, one week later I had a new lock that was sent for free as a replacement of my lock. They are very efficient !

Amazing customer service. Been struggling with a seized lock for months and never thought to contact Kryptonite.
Filled out the warranty and had a reply in under 5 minutes with a warranty replacement lock organized and scheduled for delivery next week.
Thats the kind of support you hope for but so rarely get.
Thanks!

I received a replacement bike lock for a defective lock under warranty.
I did not expect a new lock being sent which was really awesome.
I have always used Kryptonite locks for my bike for years and can attest to their quality products and service.

I purchased a New York Lock M18-WL, in February 2026 but come April the key is already jamming, or failing to fully insert into lock barrel so I can’t rely on this expensive product to actually serve its basic purpose! The lock is 60 days old and it’s never been left outside! Key Number: PP 9804

Hey, I wanted to share a quick real-world experience, I had bought my first E bike and was on my very first ride when I was hit by a hit-and-run driver my kryptonite lock flew off the bike rack and ended up getting run over by cars in the opposite lane. It was banged up but it still worked, and the good folks and kryptonite replaced so I wouldn’t have to have a banged up lock ! And I thank them very much , and to everyone at the kryptonite team in Canton, Massachusetts. You’re the best and so your locks.
Sincerely ,
Jason Blauner ( Dorchester ) mass .

Oleh was helpful and settled my issue quickly.

Amazing customer service - couldn't ask for more! They helped me to solve my problem quickly and with the highest level of care. Thank you!

Had this D-lock 6 weeks before all the problems, hard to unlock can't get key out often, will not purchase from this company I thought had a great rep!!, 😔

Kryptonite kindly sent me a replacement lock after my key snapped off in my lock.
Sadly unable to provide a refund for the cost of removing the lock as I couldn't provide photos of the cut lock but they gave me the benefit of the doubt on the replacement lock which I'm grateful for
Small criticisms:
1. There is no clear way of raising this kind of request on the kryptonite website so I had to raise it under warranty issues
2. Due to this lack of clear pathway, and the fact that it took them about a month to get back to me, I threw away the cut lock on the assumption nothing was going to happen. Obviously, should have taken a picture but a month is ages in customer service terms.
Still-grateful for the replacement lock

The padlock is amazing. Unfortunately, I think I received one with a minor defect, so after a few months of heavy use, it broke. However, customer support helped me out and we resolved the issue. In my opinion, they are the best.