Poor
314 reviews
KRYPTONITE50 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 Consumer Courier, with an average rating of 2.6 out of 5.
314 approved reviews, newest moderated first
Koke
Posted
The company made sure they get all the information required to comply with the support and the assistance and provided and provided amazing flawless support via email then during the deliverer of the product they even reach out further to make sure the product crossed special boundaries.
Stephen C.
Posted
My Kryptonite U-Lock decided after a number of years that it would only work sometimes, which made for locking and unlocking a challenge. I called Kryptonite and spoke with Oleh, their customer support person. He was extremely kind and helpful and walked me through the warranty claim process. It could not have been easier. Great customer service. I love a company that stands behind their product. Thank you, Oleh.
Niv S.
Posted
New U lock sent for Replacement
Podevin M.
Posted
Catastrophe au bout de deux mois d'utilisation impossible d'ouvrir le cadenas homologué, surtout n'en achetez pas
Response from KRYPTONITE· Sep 14, 2026
Es tut mir leid zu hören, dass du Probleme mit deinem Schloss hast. Ich habe bereits zusätzliche Informationen angefordert, damit ein Mitglied unseres Garantie-Teams sich bei dir melden kann, um dein Problem zu lösen. Danke!
Michael H.
Posted
Awful customer service and keys that don't work. Lost a key, got a replacement, the replacement doesn't work. I contact them and three weeks later, and several messages, they haven't replied to me. The time from my key being lost to now has been over two months and I have not been able to use my bike at all. It's been very depressing seeing how much money this lock has cost me in alternative transport and faulty key replacements only for the company to show one of its customers absolute contempt.
Response from KRYPTONITE· Sep 3, 2026
Hello, I have requested additional information so that a member of our team can reach out to you immediately to resolve your issue and make this right. I'm so sorry for the inconvenience and delayed response.
Brent
Posted
This was quite a saga and Donna P was patient, responsive and amazing. After trying to replace keys for 2 old-ish bike locks, Donna kept digging for serial numbers, key replacements and cutting new keys. After a LONG journey, and after being unable to cut keys that worked for either lock, she sent me replacement locks. WAY above and beyond the call of duty. Thank you Kryptonite and Donna P.!!!! I'm a customer for life.
Patricia S.
Posted
I got my Lock 14 years ago. Always working as usual, but suddenly, stop to work and my bike got lock for a couple week. I mentioned to Kryptonite and after to follow they instrucción they found a solution. Everything was really quick. I am really happy with the quality, service and how they carry out the issue. /Patricia
Slash Kyn T.
Posted
Kryptonite costumer service is really good. I ordered a lock from Bikester.se it was a Kryptonite New york Diamond standard and the item I got was defective so I contacted Kryptonite directly and asked them if they could replace the lock for me after a week of waiting I got a reply from them and they were willing to change it the lock for me. They paid for the shipping service. I had to wait for 2 weeks for the replacement of the New York Diamond standard so I didn't have any protection for my E-Scooter. so Oleh kindly sent me a Mini Diamond U lock free of charge which is really unexpected and great at the same time as they really do value their costumers. So I really recommend this lock and this company. Special thanks to Oleh Sekirin he's the one who communicated with me through it all until the problem was resolve.
